Add 6/80 and 9/21, Solve 6/80 + 9/21 as a fraction

Add 6/80 and 9/21

6/80 + 9/21 is 141/280.

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,
6/80 = 6 × 21/80 × 21 = 126/1680
Likewise, for the 2nd fraction, since 21 × 80 = 1680,
9/21 = 9 × 80/21 × 80 = 720/1680
Add the two like fractions:
126/1680 + 720/1680 = 126 + 720/1680 = 846/1680
846/1680 simplified gives 141/280
So, 6/80 + 9/21 = 141/280

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