Add 15/10 and 21/63, Solve 1 5/10 + 21/63 as a fraction

Add 15/10 and 21/63

1^st number: 1 5/10, 2^nd number: 21/63

15/10 + 21/63 is 11/6.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 63 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 10 × 63 = 630,
15/10 = 15 × 63/10 × 63 = 945/630
Likewise, for the 2nd fraction, since 63 × 10 = 630,
21/63 = 21 × 10/63 × 10 = 210/630
Add the two like fractions:
945/630 + 210/630 = 945 + 210/630 = 1155/630
1155/630 simplified gives 11/6
So, 15/10 + 21/63 = 11/6
In mixed form: 15/6

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