Các câu hỏi tương tự
1) 1/2 + 5/6 + 11/12 + 19/20 + 29/30 + 41/42 + 55/56
tính nhanh: S = 1/2+5/6+11/12+19/20+29/30+41/42+55/56+71/72+89/90
tính 12 phân số sau đây:
1/2 + 5/6 + 11/12 + 19/20 + 29/30 + 41/42 + .....
Tính Nhanh:
1/2+5/6+11/12+19/20+29/30+41/42+42/43
a.1/2+5/6+11/12+19/20+29/30+41/42+55/56
1/2 +5/6+11/12+19/20+29/30+41/42+55/56+71/72
A=1/2+5/6+11/12+19/20+29/30+41/42+71/72+89/90
Tính nhanh :
a. 5/6+11/12+19/20+29/30+41/42+55/56+71/72+89/90
b. 1/2+5/6+11/12+19/20+29/30+41/42+55/56+71/72+89/90+109/110
GIÚP MK VỚI AI NHANH MK TICK
1/2+5/6+11/12+19/20+29/30+41/42+55/56+71/72+89/90