4 1\9 * 1 1\32 * 1 1\5 -( 2 11\14 - 2 2\35) * 4 2\3...

Alexanderа12 @Alexanderа12

July 2022 1 7 Report

4 1\9 * 1 1\32 * 1 1\5 -( 2 11\14 - 2 2\35) * 4 2\3

Answers & Comments

Nastya171167 1) 2 11/14 - 2 2/35 = 39/14 - 72/35= (39 × 5 - 72 × 2)/70 = 195/70 - 144/70 = 51/70
2)4 1/9 * 1 1/32 = 37/9 * 33/32 = 407/96 = 4 23/96
3)4 23/96* 1 1/5 = 407/96 * 6/5 =2442/480 = 407/80 = 5 7/80
4)51/70 * 4 2/3 = 51/70 * 14/3 = 714/210 = 17/5 = 3 2/5
5)5 7/80 - 3 2/5 = 407/80 - 17/5 = (407 * 1 - 17 * 16)/80 = 407/80 - 272/80 = 135/80 = 27/16 = 1 11/16
ответ 1 11/16
или так
4 1/9 * 1 1/32 * 1 1/5 - (2 11/14 - 2 2/35) * 4 2/3 =4 1/9 * 1 1/32 * 1 1/5 - (51/70) * 4 2/3 = 407/96 * 1 1/5 - (51/70) * 4 2/3 = 407/80 - (51/70) * 4 2/3 =407/80 - 17/5 = 27/16 = 1 11/16

2 votes Thanks 1

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