Add 63/42 and 70/9, Solve 1 21/42 + 7 7/9 as a fraction

Add 63/42 and 70/9

1^st number: 1 21/42, 2^nd number: 7 7/9

63/42 + 70/9 is 167/18.

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,
63/42 = 63 × 3/42 × 3 = 189/126
Likewise, for the 2nd fraction, since 9 × 14 = 126,
70/9 = 70 × 14/9 × 14 = 980/126
Add the two like fractions:
189/126 + 980/126 = 189 + 980/126 = 1169/126
1169/126 simplified gives 167/18
So, 63/42 + 70/9 = 167/18
In mixed form: 95/18

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