Add 15/42 and 35/18, Solve 15/42 + 1 17/18 as a fraction

Add 15/42 and 35/18

1^st number: 15/42, 2^nd number: 1 17/18

15/42 + 35/18 is 145/63.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 42 × 3 = 126,
15/42 = 15 × 3/42 × 3 = 45/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
35/18 = 35 × 7/18 × 7 = 245/126
Add the two like fractions:
45/126 + 245/126 = 45 + 245/126 = 290/126
290/126 simplified gives 145/63
So, 15/42 + 35/18 = 145/63
In mixed form: 219/63

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