Add 24/15 and 63/42, Solve 1 9/15 + 1 21/42 as a fraction

Add 24/15 and 63/42

1^st number: 1 9/15, 2^nd number: 1 21/42

24/15 + 63/42 is 31/10.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 15 × 14 = 210,
24/15 = 24 × 14/15 × 14 = 336/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
63/42 = 63 × 5/42 × 5 = 315/210
Add the two like fractions:
336/210 + 315/210 = 336 + 315/210 = 651/210
651/210 simplified gives 31/10
So, 24/15 + 63/42 = 31/10
In mixed form: 31/10

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