191/210+161/240+129/272+96/306
191/210+161/240+129/272+95/306
Tinh : B = 191/210 + 161/240 + 129/272 + 95/306
Tinh nhanh 191/210+161/240+129/272+95/306
Tính hợp lý nhất
a, 1/210+1/240+1/272+1/306
b, 191/210+161/240+129/272+95/306
giúp mình với huhuhu
\(B=\frac{191}{210}+\frac{161}{240}+\frac{129}{272}+\frac{95}{306}\)
tÍNH TỔNG
tính tổng
A = 70 .[ 121212/565656 + 121212/727272 + 121212/909090
B = 191/210 + 161/240 +129/272 + 95/306
Tính nhan : 191/210+161/204+129/272+95/306
B=\(\frac{191}{210}\)+\(\frac{161}{240}\)+\(\frac{129}{272}\)+\(\frac{95}{306}\)
giúp minkf nha minh tick cho