Question

1. 2 2/7 - 2 3/21=
2. 6 5/4 + 5/10=
Tolong pakai cara

Answer 1

1. 2 2/7 - 2 3/21
= 16/7 - 45/21
= 48/21 - 45/21 (disamakan penyebutnya)
= 3/21 = 1/7
2.6 5/4 + 5/10
=29/4 + 5/10
= 145/20 + 10/20 (disamakan penyebutnya)
=155/20 = 31/4