не успеваю зробити контрольну по математике

Question

Математика: не успеваю зробити контрольну по математике ​

suvaeva884p019j5 · Accepted Answer

96. а) 1 + 3/8= 8/8 + 3/8 = 11/8 = 1 3/8;
б) 1 - 3/8 = 8/8 - 3/8 = 5/8;
в) 2 + 1 3/4 = 2 + 7/4 = 8/4 + 7/4 = 15/4 = 3 3/4;
г) 2 - 1 3/4 = 2 - 7/4 = 8/4 - 7/4 = 1/4
97. а) 3 - 5/6 = 18/6 - 5/6 = 13/6 = 2 1/6;
б) 4 - 12/25 = 100/25 - 12/25 = 88/25 = 3 13/25;
в) 1 4/9 + 5 = 13/9 + 45/9 = 58/9 = 6 4/9;
г) 6 17/18 - 3 = 125/18 - 54/18 = 71/18 = 3 17/18;
98. а) 2 3/8 + 5/8 = 19/8 + 5/8 = 24/8 = 3;
б) 3 11/14 - 9/14 = 3 2/14;
в) 4 5/7 + 3/7 = 4 8/7 = 5 1/7;
г) 3 2/13 - 4/13 = 41/13 - 4/13 = 37/13 = 2 11/13.
99. а) 3 1/4 + 1 1/4 = 4 2/4 = 4 1/2;
б) 5 8/21 - 2 5/21 = 3 3/21 = 3 1/7;
в) 1 4/9 + 2 7/9 = 3 11/9 = 4 2/9;
г) 4 4/15 - 2 7/15 = 64/15 - 37/15 = 27/15 = 1 12/15

не успеваю зробити контрольну по математике​

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