Add 5/90 and 84/63, Solve 5/90 + 1 21/63 as a fraction

Add 5/90 and 84/63

1^st number: 5/90, 2^nd number: 1 21/63

5/90 + 84/63 is 25/18.

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,
5/90 = 5 × 7/90 × 7 = 35/630
Likewise, for the 2nd fraction, since 63 × 10 = 630,
84/63 = 84 × 10/63 × 10 = 840/630
Add the two like fractions:
35/630 + 840/630 = 35 + 840/630 = 875/630
875/630 simplified gives 25/18
So, 5/90 + 84/63 = 25/18
In mixed form: 17/18

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