( 1 3/5 + 1 8/10 )×1/2; (6 - 48/15)× 10/22; (1 25/100+1/6 )×2 4/10; (5 4/10 - 2...

Question

( 1 3/5 + 1 8/10 )×1/2; (6 - 48/15)× 10/22; (1 25/100+1/6 )×2 4/10; (5 4/10 - 2 1/3)×3/23; (2 1/3 + 25/100)×12/100; (7 6/10- 4 3/4 ) ×10/19

Comments

Это 1 пример?

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А 2

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Смотри на фото

Answer 1

(1 3/5 + 1 8/10)*1/2=(1 6/10+1 8/10)*1/2=3 4/10 * 1/2=3 2/5 * 1/2=17/10=1 7/10

(6 -48/15)*10/22=(6 - 3 3/15) * 5/11=(6 - 3 1/5) * 5/11=2 4/5 * 5/11=14/11=1 3/11


(1 25/100 +1/6)*2 4/10=(1 1/4+1/6) * 2 2/5=(1 3/12+2/12)*12/5=1 5/12 * 12/5=17/12 * 12/5=17/5=3 2/5

(5 4/10 - 2 1/3)*3/23=(5 2/5 - 2 1/3)*3/23=(5 6/15 - 2 5/15)*3/23=3 1/15 * 3/23=46/15 * 3/23=2/5

(2 1/3+25/100) * 12/100=(2 1/3+1/4) * 3/25=(2 4/12+3/12)*3/25=2 7/12 * 3/25=31/12* 3/25=31/100

(7 6/10 - 4 3/4)*10/19=(7 3/5 - 4 3/4)*10/19=(7 12/20 - 4 15/20) * 10/19=2 17/20 * 10/19=57/20 * 10/19=3/2=1 1/2

Answer 2

1. 2
(2 1/3 + 25/100) • 12/100

1) 2 1/3 + 25/100 = 2 7/12
2) 2 7/12 • 12/100 = 31/100
Ответ: 31/100

1. 2
(7 6/10 - 4 3/4) • 10/19

1) 7 6/10 - 4 3/4 = 2 17/20
2) 2 17/20 • 10/19 = 1 1/2
Ответ: 1 1/2

Comments

спс

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на фото в последнем 2/5 (46---2 упущена)