Add 30/18 and 5/7, Solve 1 12/18 + 5/7 as a fraction

Add 30/18 and 5/7

1^st number: 1 12/18, 2^nd number: 5/7

30/18 + 5/7 is 50/21.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 7 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 7 × 18 = 126,
5/7 = 5 × 18/7 × 18 = 90/126
Add the two like fractions:
210/126 + 90/126 = 210 + 90/126 = 300/126
300/126 simplified gives 50/21
So, 30/18 + 5/7 = 50/21
In mixed form: 28/21

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