Add 80/42 and 63/49, Solve 1 38/42 + 1 14/49 as a fraction

Add 80/42 and 63/49

1^st number: 1 38/42, 2^nd number: 1 14/49

80/42 + 63/49 is 67/21.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 49 is 294

Next, find the equivalent fraction of both fractional numbers with denominator 294
For the 1st fraction, since 42 × 7 = 294,
80/42 = 80 × 7/42 × 7 = 560/294
Likewise, for the 2nd fraction, since 49 × 6 = 294,
63/49 = 63 × 6/49 × 6 = 378/294
Add the two like fractions:
560/294 + 378/294 = 560 + 378/294 = 938/294
938/294 simplified gives 67/21
So, 80/42 + 63/49 = 67/21
In mixed form: 34/21

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