\(\dfrac{7}{9}-\dfrac{1}{12}=\dfrac{28}{36}-\dfrac{3}{36}=\dfrac{25}{36}\)
\(\dfrac{7}{9}-\dfrac{1}{12}=\dfrac{28}{36}-\dfrac{3}{36}=\dfrac{25}{36}\)
bai 4: tinh bang cach thuan tien nhat: a, 5/9*5/2+4/9*5/2 , b, 12*3/4-3/4*12/7 lam kieu gi
giup minh voi
bai2: tinh gia tri bieu thuc: 9/11*(6/7-5/6) lam kieu gi
giup minh voi
minh tich 5 ban thoi nha
bai4: tim hai phan so toi gian nam giua hai phan so 2/7 va3/7 lam kieu gi
giup minh voi
minh tich 6 ban thoi nha
cau6: tim x
x:9/4+1/3+11/18 lam kieu gi
giup minh
bang 5/8
bai 4 tinh bang cach thuan tien nhat: b, 12/7*3/4-3/4*12/7 giup minh voi
muon tinh chu vi hinh binh hanh ta lam sao. Giup minh voi huhu
1.Tinh
a,5/6+1/2
b,7/8+1/4
c,5/9+3/7
giup minh voi minh xin cam on
bai lap so roi tinh tong lam kieu gi?
bai6: tim x: x:9/4+1/3=11/18 lam kieu gi
bang 5/8