Add 15/2 and 21/63, Solve 7 1/2 + 21/63 as a fraction

Add 15/2 and 21/63

1^st number: 7 1/2, 2^nd number: 21/63

15/2 + 21/63 is 47/6.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 63 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 2 × 63 = 126,
15/2 = 15 × 63/2 × 63 = 945/126
Likewise, for the 2nd fraction, since 63 × 2 = 126,
21/63 = 21 × 2/63 × 2 = 42/126
Add the two like fractions:
945/126 + 42/126 = 945 + 42/126 = 987/126
987/126 simplified gives 47/6
So, 15/2 + 21/63 = 47/6
In mixed form: 75/6

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