Add 36/10 and 63/42, Solve 3 6/10 + 1 21/42 as a fraction

Add 36/10 and 63/42

1^st number: 3 6/10, 2^nd number: 1 21/42

36/10 + 63/42 is 51/10.

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

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 10 × 21 = 210,
36/10 = 36 × 21/10 × 21 = 756/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
63/42 = 63 × 5/42 × 5 = 315/210
Add the two like fractions:
756/210 + 315/210 = 756 + 315/210 = 1071/210
1071/210 simplified gives 51/10
So, 36/10 + 63/42 = 51/10
In mixed form: 51/10

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