Add 6/90 and 84/63, Solve 6/90 + 1 21/63 as a fraction

Add 6/90 and 84/63

1^st number: 6/90, 2^nd number: 1 21/63

6/90 + 84/63 is 7/5.

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,
6/90 = 6 × 7/90 × 7 = 42/630
Likewise, for the 2nd fraction, since 63 × 10 = 630,
84/63 = 84 × 10/63 × 10 = 840/630
Add the two like fractions:
42/630 + 840/630 = 42 + 840/630 = 882/630
882/630 simplified gives 7/5
So, 6/90 + 84/63 = 7/5
In mixed form: 12/5

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