Add 90/14 and 72/42, Solve 6 6/14 + 1 30/42 as a fraction

Add 90/14 and 72/42

1^st number: 6 6/14, 2^nd number: 1 30/42

90/14 + 72/42 is 57/7.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 42 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 14 × 3 = 42,
90/14 = 90 × 3/14 × 3 = 270/42
Likewise, for the 2nd fraction, since 42 × 1 = 42,
72/42 = 72 × 1/42 × 1 = 72/42
Add the two like fractions:
270/42 + 72/42 = 270 + 72/42 = 342/42
342/42 simplified gives 57/7
So, 90/14 + 72/42 = 57/7
In mixed form: 81/7

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