Add 1/5 and 63/21, Solve 1/5 + 3 0/21 as a fraction

Add 1/5 and 63/21

1^st number: 1/5, 2^nd number: 3 0/21

1/5 + 63/21 is 16/5.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 5 × 21 = 105,
1/5 = 1 × 21/5 × 21 = 21/105
Likewise, for the 2nd fraction, since 21 × 5 = 105,
63/21 = 63 × 5/21 × 5 = 315/105
Add the two like fractions:
21/105 + 315/105 = 21 + 315/105 = 336/105
336/105 simplified gives 16/5
So, 1/5 + 63/21 = 16/5
In mixed form: 31/5

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