Add 1/90 and 72/7, Solve 1/90 + 10 2/7 as a fraction

Add 1/90 and 72/7

1^st number: 1/90, 2^nd number: 10 2/7

1/90 + 72/7 is 6487/630.

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,
1/90 = 1 × 7/90 × 7 = 7/630
Likewise, for the 2nd fraction, since 7 × 90 = 630,
72/7 = 72 × 90/7 × 90 = 6480/630
Add the two like fractions:
7/630 + 6480/630 = 7 + 6480/630 = 6487/630
So, 1/90 + 72/7 = 6487/630
In mixed form: 10187/630

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