Add 56/63 and 90/70, Solve 56/63 + 1 20/70 as a fraction

Add 56/63 and 90/70

1^st number: 56/63, 2^nd number: 1 20/70

56/63 + 90/70 is 137/63.

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,
56/63 = 56 × 10/63 × 10 = 560/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
90/70 = 90 × 9/70 × 9 = 810/630
Add the two like fractions:
560/630 + 810/630 = 560 + 810/630 = 1370/630
1370/630 simplified gives 137/63
So, 56/63 + 90/70 = 137/63
In mixed form: 211/63

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