Add 21/63 and 9/5, Solve 21/63 + 1 4/5 as a fraction

Add 21/63 and 9/5

1^st number: 21/63, 2^nd number: 1 4/5

21/63 + 9/5 is 32/15.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 5 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 63 × 5 = 315,
21/63 = 21 × 5/63 × 5 = 105/315
Likewise, for the 2nd fraction, since 5 × 63 = 315,
9/5 = 9 × 63/5 × 63 = 567/315
Add the two like fractions:
105/315 + 567/315 = 105 + 567/315 = 672/315
672/315 simplified gives 32/15
So, 21/63 + 9/5 = 32/15
In mixed form: 22/15

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