Add 3/42 and 45/18, Solve 3/42 + 2 9/18 as a fraction

Add 3/42 and 45/18

1^st number: 3/42, 2^nd number: 2 9/18

3/42 + 45/18 is 18/7.

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,
3/42 = 3 × 3/42 × 3 = 9/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
45/18 = 45 × 7/18 × 7 = 315/126
Add the two like fractions:
9/126 + 315/126 = 9 + 315/126 = 324/126
324/126 simplified gives 18/7
So, 3/42 + 45/18 = 18/7
In mixed form: 24/7

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