Add 21/18 and 5/35, Solve 1 3/18 + 5/35 as a fraction

Add 21/18 and 5/35

1^st number: 1 3/18, 2^nd number: 5/35

21/18 + 5/35 is 55/42.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 35 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 18 × 35 = 630,
21/18 = 21 × 35/18 × 35 = 735/630
Likewise, for the 2nd fraction, since 35 × 18 = 630,
5/35 = 5 × 18/35 × 18 = 90/630
Add the two like fractions:
735/630 + 90/630 = 735 + 90/630 = 825/630
825/630 simplified gives 55/42
So, 21/18 + 5/35 = 55/42
In mixed form: 113/42

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