А)3/5 + 3/7 + 9/7 • 4/15
Б)(7/9 - 1/6) : 2/9 • 21/22
В)7/8 + 5/8 • 1/3 + 2/3
Г)(1/6 + 3/14) : (5/12 - 1/14)
Б)(7/9 - 1/6) : 2/9 • 21/22
В)7/8 + 5/8 • 1/3 + 2/3
Г)(1/6 + 3/14) : (5/12 - 1/14)
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Answers & Comments
2) 3
3) 1,5
4) 1