Add 9/80 and 72/63, Solve 9/80 + 1 9/63 as a fraction

Add 9/80 and 72/63

1^st number: 9/80, 2^nd number: 1 9/63

9/80 + 72/63 is 703/560.

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,
9/80 = 9 × 63/80 × 63 = 567/5040
Likewise, for the 2nd fraction, since 63 × 80 = 5040,
72/63 = 72 × 80/63 × 80 = 5760/5040
Add the two like fractions:
567/5040 + 5760/5040 = 567 + 5760/5040 = 6327/5040
6327/5040 simplified gives 703/560
So, 9/80 + 72/63 = 703/560
In mixed form: 1143/560

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