Add 21/42 and 35/18, Solve 21/42 + 1 17/18 as a fraction

Add 21/42 and 35/18

1^st number: 21/42, 2^nd number: 1 17/18

21/42 + 35/18 is 22/9.

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,
21/42 = 21 × 3/42 × 3 = 63/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
35/18 = 35 × 7/18 × 7 = 245/126
Add the two like fractions:
63/126 + 245/126 = 63 + 245/126 = 308/126
308/126 simplified gives 22/9
So, 21/42 + 35/18 = 22/9
In mixed form: 24/9

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