10) 9/14 - 3/7 + 15/28 =...... 11) 1/3 - 1/6 +1/4 =....... 12) 2/5 + 4/15 - 5/9 =.......

Question

10) 9/14 - 3/7 + 15/28 =......
11) 1/3 - 1/6 +1/4 =.......
12) 2/5 + 4/15 - 5/9 =.......

Comments

/ это разделить?

Answer 1

На фото решение
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