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

Add 30/18 and 6/21

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

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

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,
30/18 = 30 × 7/18 × 7 = 210/126
Likewise, for the 2nd fraction, since 21 × 6 = 126,
6/21 = 6 × 6/21 × 6 = 36/126
Add the two like fractions:
210/126 + 36/126 = 210 + 36/126 = 246/126
246/126 simplified gives 41/21
So, 30/18 + 6/21 = 41/21
In mixed form: 120/21

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