Question

нужно выполнить действие в десятичных дробях пж мне нужен помощь

Answer 1

1)
$32.6 \times 5\frac{1}{4} + 1 \frac{1}{5} \times 8.5 = \\ 32.6 \times 5.2 + 1.2 \times 8.5 = \\ 169.52 + 10.2 = 179.72$
2)
$1 \frac{3}{4} \times 32.8 - 1.12 \times 3.5 = \\ 1.75 \times 32.8 - 1.12 \times 3.5 = \\ 57.4 - 3.92 = 53.48$
3)
$147 - 13\frac{3}{5} \times 4.8 + 3 \frac{1}{2} \times 6.8 = \\ 147 - 13.6 \times 4.8 + 3.5 \times \: 6.8 = \\ 147 - 65.28 + 23.8 = 57.92$
4)
$0.2 \times (5 \frac{1}{4} + 6.1) + 0.01 \times 3 = \\ 0.2 \times (5.25 + 6.1) + 0.01 \times 3 = \\ 0.2 \times 11.35 + 0.03 = 2.3$