Add 6/21 and 90/18, Solve 6/21 + 5 0/18 as a fraction

Add 6/21 and 90/18

1^st number: 6/21, 2^nd number: 5 0/18

6/21 + 90/18 is 37/7.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 21 × 6 = 126,
6/21 = 6 × 6/21 × 6 = 36/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
90/18 = 90 × 7/18 × 7 = 630/126
Add the two like fractions:
36/126 + 630/126 = 36 + 630/126 = 666/126
666/126 simplified gives 37/7
So, 6/21 + 90/18 = 37/7
In mixed form: 52/7

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