Add 63/42 and 2/10, Solve 1 21/42 + 2/10 as a fraction

Add 63/42 and 2/10

1^st number: 1 21/42, 2^nd number: 2/10

63/42 + 2/10 is 17/10.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 10 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 42 × 5 = 210,
63/42 = 63 × 5/42 × 5 = 315/210
Likewise, for the 2nd fraction, since 10 × 21 = 210,
2/10 = 2 × 21/10 × 21 = 42/210
Add the two like fractions:
315/210 + 42/210 = 315 + 42/210 = 357/210
357/210 simplified gives 17/10
So, 63/42 + 2/10 = 17/10
In mixed form: 17/10

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