Add 45/12 and 80/49, Solve 3 9/12 + 1 31/49 as a fraction

Add 45/12 and 80/49

1^st number: 3 9/12, 2^nd number: 1 31/49

45/12 + 80/49 is 1055/196.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 49 is 588

Next, find the equivalent fraction of both fractional numbers with denominator 588
For the 1st fraction, since 12 × 49 = 588,
45/12 = 45 × 49/12 × 49 = 2205/588
Likewise, for the 2nd fraction, since 49 × 12 = 588,
80/49 = 80 × 12/49 × 12 = 960/588
Add the two like fractions:
2205/588 + 960/588 = 2205 + 960/588 = 3165/588
3165/588 simplified gives 1055/196
So, 45/12 + 80/49 = 1055/196
In mixed form: 575/196

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