Add 7/90 and 81/7, Solve 7/90 + 11 4/7 as a fraction

Add 7/90 and 81/7

1^st number: 7/90, 2^nd number: 11 4/7

7/90 + 81/7 is 7339/630.

Find the least common denominator or LCM of the two denominators:
LCM of 90 and 7 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 90 × 7 = 630,
7/90 = 7 × 7/90 × 7 = 49/630
Likewise, for the 2nd fraction, since 7 × 90 = 630,
81/7 = 81 × 90/7 × 90 = 7290/630
Add the two like fractions:
49/630 + 7290/630 = 49 + 7290/630 = 7339/630
So, 7/90 + 81/7 = 7339/630
In mixed form: 11409/630

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