Add 63/3 and 60/42, Solve 21 0/3 + 1 18/42 as a fraction

Add 63/3 and 60/42

1^st number: 21 0/3, 2^nd number: 1 18/42

63/3 + 60/42 is 157/7.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 42 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 3 × 14 = 42,
63/3 = 63 × 14/3 × 14 = 882/42
Likewise, for the 2nd fraction, since 42 × 1 = 42,
60/42 = 60 × 1/42 × 1 = 60/42
Add the two like fractions:
882/42 + 60/42 = 882 + 60/42 = 942/42
942/42 simplified gives 157/7
So, 63/3 + 60/42 = 157/7
In mixed form: 223/7

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