Add 18/4 and 12/7, Solve 4 2/4 + 1 5/7 as a fraction

Add 18/4 and 12/7

1^st number: 4 2/4, 2^nd number: 1 5/7

18/4 + 12/7 is 87/14.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28

Next, find the equivalent fraction of both fractional numbers with denominator 28
For the 1st fraction, since 4 × 7 = 28,
18/4 = 18 × 7/4 × 7 = 126/28
Likewise, for the 2nd fraction, since 7 × 4 = 28,
12/7 = 12 × 4/7 × 4 = 48/28
Add the two like fractions:
126/28 + 48/28 = 126 + 48/28 = 174/28
174/28 simplified gives 87/14
So, 18/4 + 12/7 = 87/14
In mixed form: 63/14

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