Add 4/21 and 80/18, Solve 4/21 + 4 8/18 as a fraction

Add 4/21 and 80/18

1^st number: 4/21, 2^nd number: 4 8/18

4/21 + 80/18 is 292/63.

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,
4/21 = 4 × 6/21 × 6 = 24/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
80/18 = 80 × 7/18 × 7 = 560/126
Add the two like fractions:
24/126 + 560/126 = 24 + 560/126 = 584/126
584/126 simplified gives 292/63
So, 4/21 + 80/18 = 292/63
In mixed form: 440/63

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