Add 12/9 and 7/42, Solve 1 3/9 + 7/42 as a fraction

Add 12/9 and 7/42

1^st number: 1 3/9, 2^nd number: 7/42

12/9 + 7/42 is 3/2.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 42 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 9 × 14 = 126,
12/9 = 12 × 14/9 × 14 = 168/126
Likewise, for the 2nd fraction, since 42 × 3 = 126,
7/42 = 7 × 3/42 × 3 = 21/126
Add the two like fractions:
168/126 + 21/126 = 168 + 21/126 = 189/126
189/126 simplified gives 3/2
So, 12/9 + 7/42 = 3/2
In mixed form: 11/2

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