2/5 + 1/2 + 7/10 = 40/100 + 50/100 + 70/100 = 160/100
4/9 + 11/8 - 5/6 = 32/72 + 99/72 - 5/6 = 131/72 - 5/6 = 131/72 - 60/72 = 71/72
9/20 - 8/15 x 5/12 = 9/20 - 40/180 = 81/180 - 40/180 = 41/180
2/3 : 4/5 : 7/12 = 10/12 : 7/12 = 120/84
Đổi: 4kg = 4000g
Số quả táo để cân nặng được 4kg là:
4000 : 50 = 80 (quả)
Đáp số: 80 quả táo.
Neu 1 qua tao can nang 50g thi can co bau nhieu qua tao nhu the de can duoc 4kg
NEU MOT QHA XOAI CAN NANG 500 G THI CAN BAO NHIEU QHA XOAI NHU VAY DE CAN DUOC 4KG
A, 10 QHA B, 5 QHA C, 8 QHA D, 4 QHA
bài 1
4/7+4
3+6/11
3-5/7
21/9-2
15/24+2
63/45-20/25
3/4-2/8
6/7-5/8
37/45-5/9
46/39-11/13
5/12+3/4+1/3
1/2+3/7+11/14
7/10-(1/5+1/4)
15/4-2/3-3/4
Dien < > =
A 2/3:5/6. 4/5×2/3
B 1/2×3/4. 5/8:6/8
C 9/7:3/2. 7/6:1/4
D 13/12:12/11. 11/10:10/9
CAC BAN NHO VIET KET QUA DUOI MOI PHAN SO MA MINH TINH DUOC NHE
bai 1; 2/5 + 1/2 + 7/10 ; 4/9 + 11/8 - 5/6 ; 9/20 - 8/15 * 5/12
bai 2 ; 2/5 + 3/10 - 1/2 ; 8/11 + 8/33 * 3/4
bai 3 ; x - 3/4 = 1/2 ;
bai 4 ; tinh chu vi hinh chu nhat co chieu dai 4/5 m va chieu rong 2/3 m
1/2+2/3+3/4+4/5+5/6+6/7+7/8+8/9+9/10+10/11+11/12+12/13+13/14+14/15=?
loan co it hon 20 qua tao. biet rang neu Loan dem so tao chia deu cho 5 ban hoac 2 ban thi vua het.hoi loan co bao nhieu qua tao
viet loi giai chi tiet dau tien duoc chon nhe!
Dien < > =
A 2/3:5/6. 4/5×2/3
B 1/2×3/4. 5/8:6/8
C 9/7:3/2. 7/6:1/4
D 13/12:12/11. 11/10:10/9
Cac ban nho ghi ket qua cuoi moi phan so nhe
An co 1 co mot so tao,An chia cho 3 nguoi nhung chi chia duoc cho 2 nguoi va con thua 5 qua.Hoi sau khi chia ban An co bao nhieu qua tao (biet An hon chi 2 qua tao)
giup minh voi ai nhanh tick luon minh can gap
nho la minh cung kb voi luon
