Add 6/90 and 75/21, Solve 6/90 + 3 12/21 as a fraction

Add 6/90 and 75/21

1^st number: 6/90, 2^nd number: 3 12/21

6/90 + 75/21 is 382/105.

Find the least common denominator or LCM of the two denominators:
LCM of 90 and 21 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 21 × 30 = 630,
75/21 = 75 × 30/21 × 30 = 2250/630
Add the two like fractions:
42/630 + 2250/630 = 42 + 2250/630 = 2292/630
2292/630 simplified gives 382/105
So, 6/90 + 75/21 = 382/105
In mixed form: 367/105

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