Add 10/80 and 70/63, Solve 10/80 + 1 7/63 as a fraction

Add 10/80 and 70/63

1^st number: 10/80, 2^nd number: 1 7/63

10/80 + 70/63 is 89/72.

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,
10/80 = 10 × 63/80 × 63 = 630/5040
Likewise, for the 2nd fraction, since 63 × 80 = 5040,
70/63 = 70 × 80/63 × 80 = 5600/5040
Add the two like fractions:
630/5040 + 5600/5040 = 630 + 5600/5040 = 6230/5040
6230/5040 simplified gives 89/72
So, 10/80 + 70/63 = 89/72
In mixed form: 117/72

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