Add 4/21 and 98/18, Solve 4/21 + 5 8/18 as a fraction

Add 4/21 and 98/18

1^st number: 4/21, 2^nd number: 5 8/18

4/21 + 98/18 is 355/63.

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,
98/18 = 98 × 7/18 × 7 = 686/126
Add the two like fractions:
24/126 + 686/126 = 24 + 686/126 = 710/126
710/126 simplified gives 355/63
So, 4/21 + 98/18 = 355/63
In mixed form: 540/63

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