1. Hasil dari 5 - 2 1/2 - 1 3/5 =

a. 8/10
b. 9/10
c. 7/10
d. 6/10

2. Hasil dari 4 + 1 3/4 + 3 1/2 =

a. 9 1/6
b. 9 1/5
c. 9 1/4
d. 9 1/3

3. Hasil dari 4 1/5 – 2 3/4 + 1 2/3

a. 3 5/60
b. 3 6/60
c. 3 7/60
d. 3 8/60

1. Hasil dari 5 – 2 1/2 – 1 3/5 =

Penjelasan dengan langkah-langkah:

$tt{}5 - 2 frac{1}{2 }- 1 frac{3}{5} \$

$tt{}5 - frac{5}{2} - frac{8}{5}$

$tt{} frac{9}{10} \ \$

$tt{}4 + 1 frac{3}{4} + 3 frac{1}{2}$

$tt{}4 + 1 + frac{3}{4} + 3 + frac{1}{2}$

$tt{}(4 + 1 + 3) + ( frac{3}{4} + frac{1}{2} )$

$tt{}8 + frac{5}{4}$

$tt{}8 + 1 + frac{1}{4}$

$tt{}9 frac{1}{4} \ \$

$tt{} 4frac{1}{5} - 2 frac{3}{4} + 1frac{2}{3}$

$tt{}4 + frac{1}{5} - (2 + frac{3}{4} ) + 1 + frac{2}{3}$

$tt{}4 + frac{1}{5} - 2 - frac{3}{4} + 1 + frac{2}{3}$

$tt{}(4- 2 + 1) + ( frac{1}{5} - frac{3}{4} + frac{2}{3} )$

$tt{}3 + frac{7}{60}$

$tt{}3 frac{7}{60} \ \ \$

#Mari Belajar!

1.
5 – 2 1/2 – 1 3/5
= 5/1 – 5/2 – 8/5
= (5 x 10)/(1 x 10) – (5 x 5)/(2 x 5) – (8 x 2)/(5 x 2)
= 50/10 – 25/10 – 16/10
= 25/10 – 16/10
= 9/10 (B)

2.
4 + 1 3/4 + 3 1/2
= 4/1 + 7/4 + 7/2
= (4 x 4)/(1 x 4) + (7 x 1)/(4 x 1) + (7 x 2)/(2 x 2)
= 16/4 + 7/4 + 14/4
= 23/4 + 14/4
= 37/4
= 9 1/4 (C)

3.
4 1/5 – 2 3/4 + 1 2/3
= 21/5 – 11/4 + 5/3
= (21 x 12)/(5 x 12) – (11 x 15)/(4 x 15) + (5 x 20)/(3 x 20)
= 252/60 – 165/60 + 100/60
= 87/60 + 100/60
= 187/60
= 3 7/60 (C)