Add 9/42 and 63/5, Solve 9/42 + 12 3/5 as a fraction

Add 9/42 and 63/5

1^st number: 9/42, 2^nd number: 12 3/5

9/42 + 63/5 is 897/70.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 5 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 42 × 5 = 210,
9/42 = 9 × 5/42 × 5 = 45/210
Likewise, for the 2nd fraction, since 5 × 42 = 210,
63/5 = 63 × 42/5 × 42 = 2646/210
Add the two like fractions:
45/210 + 2646/210 = 45 + 2646/210 = 2691/210
2691/210 simplified gives 897/70
So, 9/42 + 63/5 = 897/70
In mixed form: 1257/70

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