Lengkapi pecahan-pecahan senilai dibawah ini!

Lengkapi pecahan-pecahan senilai dibawah ini!

trik penjumlahan pecahan.

$frac{a}{b} + frac{c}{d} = frac{ad}{bd} + frac{bc}{bd}$

1. ⅖ + ¼ = 8/20 + 5/20 = 13/20

2. ⅔ + ⅕ = 10/15 + 3/15 = 13/15

3. ⅗ + ⅓ = 9/15 + 5/15 = 14/15

4. ⅙ + ¾ = 4/24 + 18/24 = 22/24 = 11/12 (disederhanakan).

5. ⅚ + ⅘ = 25/30 + 24/30 = 49/30

1. ⅘ + ¾ = 16/20 + 15/20 = 31/20

2. 2/7 + 1/4 = 8/28 + 7/28 = 15/28

3. 2/5 + 5/8 = 16/40 + 25/40 = 41/40

4. 5/6 + 2/7 = 35/42 + 12/42 = 47/42

5. 5/7 + 4/9 = 45/63 + 28/63 = 73/63