Add 4/21 and 56/80, Solve 4/21 + 56/80 as a fraction

Add 4/21 and 56/80

4/21 + 56/80 is 187/210.

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

Next, find the equivalent fraction of both fractional numbers with denominator 1680
For the 1st fraction, since 21 × 80 = 1680,
4/21 = 4 × 80/21 × 80 = 320/1680
Likewise, for the 2nd fraction, since 80 × 21 = 1680,
56/80 = 56 × 21/80 × 21 = 1176/1680
Add the two like fractions:
320/1680 + 1176/1680 = 320 + 1176/1680 = 1496/1680
1496/1680 simplified gives 187/210
So, 4/21 + 56/80 = 187/210

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