Add 49/42 and 21/12, Solve 1 7/42 + 1 9/12 as a fraction

Add 49/42 and 21/12

1^st number: 1 7/42, 2^nd number: 1 9/12

49/42 + 21/12 is 35/12.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 12 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 42 × 2 = 84,
49/42 = 49 × 2/42 × 2 = 98/84
Likewise, for the 2nd fraction, since 12 × 7 = 84,
21/12 = 21 × 7/12 × 7 = 147/84
Add the two like fractions:
98/84 + 147/84 = 98 + 147/84 = 245/84
245/84 simplified gives 35/12
So, 49/42 + 21/12 = 35/12
In mixed form: 211/12

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