Add 24/90 and 90/21, Solve 24/90 + 4 6/21 as a fraction

Add 24/90 and 90/21

1^st number: 24/90, 2^nd number: 4 6/21

24/90 + 90/21 is 478/105.

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,
24/90 = 24 × 7/90 × 7 = 168/630
Likewise, for the 2nd fraction, since 21 × 30 = 630,
90/21 = 90 × 30/21 × 30 = 2700/630
Add the two like fractions:
168/630 + 2700/630 = 168 + 2700/630 = 2868/630
2868/630 simplified gives 478/105
So, 24/90 + 90/21 = 478/105
In mixed form: 458/105

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