Add 6/21 and 30/18, Solve 6/21 + 1 12/18 as a fraction

Add 6/21 and 30/18

1^st number: 6/21, 2^nd number: 1 12/18

6/21 + 30/18 is 41/21.

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

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 21 × 6 = 126,
6/21 = 6 × 6/21 × 6 = 36/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
30/18 = 30 × 7/18 × 7 = 210/126
Add the two like fractions:
36/126 + 210/126 = 36 + 210/126 = 246/126
246/126 simplified gives 41/21
So, 6/21 + 30/18 = 41/21
In mixed form: 120/21

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