5.6 + 7 1/5 = 5.6 + 7.2 = 12.8
2 1/2 × 0.4 = 2.5 × 0.4 = 1
7 1/8 ÷ 4 3/4 = 7.125 ÷ 4.75 = 1.5
9 3/20 - 1.34 = 9.15 - 1.34 = 7.81
1/2 + (4/5 - 0.3) = 0.5 + (0.8 - 0.3) = 0.5 + 0.5 = 1
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Answers & Comments
5.6 + 7 1/5 = 5.6 + 7.2 = 12.8
2 1/2 × 0.4 = 2.5 × 0.4 = 1
7 1/8 ÷ 4 3/4 = 7.125 ÷ 4.75 = 1.5
9 3/20 - 1.34 = 9.15 - 1.34 = 7.81
1/2 + (4/5 - 0.3) = 0.5 + (0.8 - 0.3) = 0.5 + 0.5 = 1