Add 21/2 and 7/84, Solve 10 1/2 + 7/84 as a fraction

Add 21/2 and 7/84

1^st number: 10 1/2, 2^nd number: 7/84

21/2 + 7/84 is 127/12.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 84 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 2 × 42 = 84,
21/2 = 21 × 42/2 × 42 = 882/84
Likewise, for the 2nd fraction, since 84 × 1 = 84,
7/84 = 7 × 1/84 × 1 = 7/84
Add the two like fractions:
882/84 + 7/84 = 882 + 7/84 = 889/84
889/84 simplified gives 127/12
So, 21/2 + 7/84 = 127/12
In mixed form: 107/12

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