Add 12/40 and 72/49, Solve 12/40 + 1 23/49 as a fraction

Add 12/40 and 72/49

1^st number: 12/40, 2^nd number: 1 23/49

12/40 + 72/49 is 867/490.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 49 is 1960

Next, find the equivalent fraction of both fractional numbers with denominator 1960
For the 1st fraction, since 40 × 49 = 1960,
12/40 = 12 × 49/40 × 49 = 588/1960
Likewise, for the 2nd fraction, since 49 × 40 = 1960,
72/49 = 72 × 40/49 × 40 = 2880/1960
Add the two like fractions:
588/1960 + 2880/1960 = 588 + 2880/1960 = 3468/1960
3468/1960 simplified gives 867/490
So, 12/40 + 72/49 = 867/490
In mixed form: 1377/490

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