Add 20/80 and 75/63, Solve 20/80 + 1 12/63 as a fraction

Add 20/80 and 75/63

1^st number: 20/80, 2^nd number: 1 12/63

20/80 + 75/63 is 121/84.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 63 is 5040

Next, find the equivalent fraction of both fractional numbers with denominator 5040
For the 1st fraction, since 80 × 63 = 5040,
20/80 = 20 × 63/80 × 63 = 1260/5040
Likewise, for the 2nd fraction, since 63 × 80 = 5040,
75/63 = 75 × 80/63 × 80 = 6000/5040
Add the two like fractions:
1260/5040 + 6000/5040 = 1260 + 6000/5040 = 7260/5040
7260/5040 simplified gives 121/84
So, 20/80 + 75/63 = 121/84
In mixed form: 137/84

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