Add 20/84 and 80/60, Solve 20/84 + 1 20/60 as a fraction

Add 20/84 and 80/60

1^st number: 20/84, 2^nd number: 1 20/60

20/84 + 80/60 is 11/7.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 60 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 84 × 5 = 420,
20/84 = 20 × 5/84 × 5 = 100/420
Likewise, for the 2nd fraction, since 60 × 7 = 420,
80/60 = 80 × 7/60 × 7 = 560/420
Add the two like fractions:
100/420 + 560/420 = 100 + 560/420 = 660/420
660/420 simplified gives 11/7
So, 20/84 + 80/60 = 11/7
In mixed form: 14/7

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