2. Выполните действия: ³⁄₇ + 5⁄₁₄, ⁸⁄₉− ⁷⁄₁₂‚ ¹¹⁄₅₀− ³⁄₂₅+ ¹⁄₂₀

Question

2. Выполните действия: ³⁄₇ + 5⁄₁₄, ⁸⁄₉− ⁷⁄₁₂‚ ¹¹⁄₅₀− ³⁄₂₅+ ¹⁄₂₀

Answer 1

1) 3/7 + 5/14 = 6/14 + 5/14 = 11/14 2) 8/9 - 7/12 = 32/36 - 21/36 = 11/36 3) 11/50 - 3/25 + 1/20 = 22/100 - 12/100 + 5/100 = 15/100 = 0.15

Answer 2

3/7+5/14=6/14+5/14=11/14 8/9-7/12 =32/36-21/36=11/36 11/50-3/25+1/20=22-12+5/=15/100=3/20

Comments

1) 3/7 + 5/14 = 6/14 + 5/14 = 11/14 2) 8/9 - 7/12 = 32/36 - 21/36 = 11/36 3) 11/50 - 3/25 + 1/20 = 22/100 - 12/100 + 5/100 = 15/100 = 0.15