Add 15/42 and 15/9, Solve 15/42 + 1 6/9 as a fraction

Add 15/42 and 15/9

1^st number: 15/42, 2^nd number: 1 6/9

15/42 + 15/9 is 85/42.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 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 9 × 14 = 126,
15/9 = 15 × 14/9 × 14 = 210/126
Add the two like fractions:
45/126 + 210/126 = 45 + 210/126 = 255/126
255/126 simplified gives 85/42
So, 15/42 + 15/9 = 85/42
In mixed form: 21/42

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