Add 90/63 and 81/70, Solve 1 27/63 + 1 11/70 as a fraction

Add 90/63 and 81/70

1^st number: 1 27/63, 2^nd number: 1 11/70

90/63 + 81/70 is 181/70.

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,
81/70 = 81 × 9/70 × 9 = 729/630
Add the two like fractions:
900/630 + 729/630 = 900 + 729/630 = 1629/630
1629/630 simplified gives 181/70
So, 90/63 + 81/70 = 181/70
In mixed form: 241/70

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