Add 21/2 and 9/70, Solve 10 1/2 + 9/70 as a fraction

Add 21/2 and 9/70

1^st number: 10 1/2, 2^nd number: 9/70

21/2 + 9/70 is 372/35.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 70 is 70

Next, find the equivalent fraction of both fractional numbers with denominator 70
For the 1st fraction, since 2 × 35 = 70,
21/2 = 21 × 35/2 × 35 = 735/70
Likewise, for the 2nd fraction, since 70 × 1 = 70,
9/70 = 9 × 1/70 × 1 = 9/70
Add the two like fractions:
735/70 + 9/70 = 735 + 9/70 = 744/70
744/70 simplified gives 372/35
So, 21/2 + 9/70 = 372/35
In mixed form: 1022/35

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