Add 7/18 and 63/21, Solve 7/18 + 3 0/21 as a fraction

Add 7/18 and 63/21

1^st number: 7/18, 2^nd number: 3 0/21

7/18 + 63/21 is 61/18.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 18 × 7 = 126,
7/18 = 7 × 7/18 × 7 = 49/126
Likewise, for the 2nd fraction, since 21 × 6 = 126,
63/21 = 63 × 6/21 × 6 = 378/126
Add the two like fractions:
49/126 + 378/126 = 49 + 378/126 = 427/126
427/126 simplified gives 61/18
So, 7/18 + 63/21 = 61/18
In mixed form: 37/18

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