Add 90/63 and 50/70, Solve 1 27/63 + 50/70 as a fraction

Add 90/63 and 50/70

1^st number: 1 27/63, 2^nd number: 50/70

90/63 + 50/70 is 15/7.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 70 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 63 × 10 = 630,
90/63 = 90 × 10/63 × 10 = 900/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
50/70 = 50 × 9/70 × 9 = 450/630
Add the two like fractions:
900/630 + 450/630 = 900 + 450/630 = 1350/630
1350/630 simplified gives 15/7
So, 90/63 + 50/70 = 15/7
In mixed form: 21/7

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