1 3/4 + 0,2 : 2/5= a 2,75 b 2 1/4 c 2 1/2 d 1 1/4 daje naj.... Question from @ktostam12443453

June 2022 2 14 Report

1 3/4 + 0,2 : 2/5=

a 2,75
b 2 1/4
c 2 1/2
d 1 1/4
daje naj

FajnyMisiu2001

Obliczenia

$1\frac{3}{4}+0,2:\frac{2}{5}=1\frac{3}{4}+\frac{2}{10}:\frac{2}{5}=\\\\=1\frac{3}{4}+\frac{1}{5}\cdot\frac{5}{2}=1\frac{3}{4}+\frac{1}{2}=1\frac{3}{4}+\frac{2}{4}=1\frac{5}{4}=2\frac{1}{4}\\\\\huge\boxed{\text{Odp}. \ \text{B}}$

2 votes Thanks 2

krystynapasek2

Odpowiedź:

1 i 3/4 + 0,2 : 2/5= 1 i 3/4 + 2/10 *5/2( skracamy 2 i 2 przez 2, oraz 5 i 10 przez

5)= 1 i 3/4 + 1/2= 1 i 3/4 + 2/4= 1 i 5/4= 2 i 1/4

odp. b . 2 i 1/4

Szczegółowe wyjaśnienie:

1 votes Thanks 2

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