Add 9/30 and 63/42, Solve 9/30 + 1 21/42 as a fraction

Add 9/30 and 63/42

1^st number: 9/30, 2^nd number: 1 21/42

9/30 + 63/42 is 9/5.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 30 × 7 = 210,
9/30 = 9 × 7/30 × 7 = 63/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
63/42 = 63 × 5/42 × 5 = 315/210
Add the two like fractions:
63/210 + 315/210 = 63 + 315/210 = 378/210
378/210 simplified gives 9/5
So, 9/30 + 63/42 = 9/5
In mixed form: 14/5

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