Question

С решением пожалуйста

Answer 1

Пошаговое объяснение:

№335

1.

0,8 * 7/12 = 8/10 * 7/12 = 2/10 * 7/3 = 14/30 = 7/15

2.

1. 2/3 * 0,6 = 5/3 * 6/10 = 1/1 * 2/2 = 2/2 = 1

3.

1,25 * 32/45 = 1. 25/100 * 32/45 = 1. 1/4 * 32/45 = 5/4 * 32/45 = 1/1 * 8/9 = 8/9

4.

4,5 * 3. 1/3 = 4. 5/10 * 3. 1/3 = 45/10 * 10/3 = 15/1 * 1/1 = 15/1 = 15

№336

1.

1) 11/18 - 4/9 = 11/18 - 8/18 = 3/18 = 1/6

2) 1/6 * 3/16 = 1/2 * 1/16 = 1/32

2.

1) 4/9 * 3/16 = 1/3 * 1/4 = 1/12

2) 11/18 - 1/12 = 22/36 - 3/36 = 19/36

6.

1) 1. 3/25 * 2. 1/7 = 28/25 * 15/7 = 4/5 * 3/1 = 12/5 = 2. 2/5

2) 2. 1/9 * 27/190 = 19/9 * 27/190 = 1/1 * 3/10 = 3/10

3) 2. 2/5 - 3/10 = 2. 4/10 - 3/10 = 2. 1/10

7.

1) 4. 7/12 * 1. 3/11 = 55/12 * 14/11 = 5/6 * 7/1 = 35/6 = 5. 5/6

2) 1. 1/15 * 45/64 = 16/15 * 45/64 = 1/1 * 3/4 = 3/4

3) 5. 5/6 + 3/4 = 5. 10/12 + 9/12 = 5. 19/12 = 6. 7/12

Answer 2

Пошаговое объяснение:

335

1) 0,8×7/12=8/10×7/12=4/5×7/12=1/5×7/3=7/15

2) 1 2/3×0,6=5/3×6/10=5/3×3/5=1

3) 1,25×32/45=1 25/100×32/45=

=1 1/4×32/45=5/4×32/45=8/9

4) 4,5×3 1/3=4 5/10×10/3=4 1/2×10/3=

=9/2×10/3=3×5=15

336

1) (11/18-4/9)×3/16=(11/18-8/18)×3/16=

=3/18×3/16=3/6×1/16=1/2×1/16=1/32

2) 11/18-4/9×3/16=11/18-1/3×1/4=

=11/18-1/12=22/36-3/36=19/36

3) 1 3/25×2 1/7-2 1/9×27/190=

=28/25×15/7-19/9×27/190=

=4/5×3/1-1×3/10=12/5-3/10=24/10-3/10=

=21/10=2,1

4) 4 7/12×1 3/11+1 1/15×45/64=

=55/12×14/11+16/15×45/64=

=5/6×7/1+4/1×3/4=35/6+3/4=70/12+9/12=

=79/12=6 7/12