Add 42/18 and 5/7, Solve 2 6/18 + 5/7 as a fraction

Add 42/18 and 5/7

1^st number: 2 6/18, 2^nd number: 5/7

42/18 + 5/7 is 64/21.

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,
42/18 = 42 × 7/18 × 7 = 294/126
Likewise, for the 2nd fraction, since 7 × 18 = 126,
5/7 = 5 × 18/7 × 18 = 90/126
Add the two like fractions:
294/126 + 90/126 = 294 + 90/126 = 384/126
384/126 simplified gives 64/21
So, 42/18 + 5/7 = 64/21
In mixed form: 31/21

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