Add 80/42 and 45/49, Solve 1 38/42 + 45/49 as a fraction

Add 80/42 and 45/49

1^st number: 1 38/42, 2^nd number: 45/49

80/42 + 45/49 is 415/147.

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,
45/49 = 45 × 6/49 × 6 = 270/294
Add the two like fractions:
560/294 + 270/294 = 560 + 270/294 = 830/294
830/294 simplified gives 415/147
So, 80/42 + 45/49 = 415/147
In mixed form: 2121/147

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