Add 81/90 and 40/63, Solve 81/90 + 40/63 as a fraction

Add 81/90 and 40/63

81/90 + 40/63 is 967/630.

Find the least common denominator or LCM of the two denominators:
LCM of 90 and 63 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 90 × 7 = 630,
81/90 = 81 × 7/90 × 7 = 567/630
Likewise, for the 2nd fraction, since 63 × 10 = 630,
40/63 = 40 × 10/63 × 10 = 400/630
Add the two like fractions:
567/630 + 400/630 = 567 + 400/630 = 967/630
So, 81/90 + 40/63 = 967/630
In mixed form: 1337/630

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