Add 24/80 and 36/21, Solve 24/80 + 1 15/21 as a fraction

Add 24/80 and 36/21

1^st number: 24/80, 2^nd number: 1 15/21

24/80 + 36/21 is 141/70.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 21 is 1680

Next, find the equivalent fraction of both fractional numbers with denominator 1680
For the 1st fraction, since 80 × 21 = 1680,
24/80 = 24 × 21/80 × 21 = 504/1680
Likewise, for the 2nd fraction, since 21 × 80 = 1680,
36/21 = 36 × 80/21 × 80 = 2880/1680
Add the two like fractions:
504/1680 + 2880/1680 = 504 + 2880/1680 = 3384/1680
3384/1680 simplified gives 141/70
So, 24/80 + 36/21 = 141/70
In mixed form: 21/70

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