Add 90/21 and 24/5, Solve 4 6/21 + 4 4/5 as a fraction

Add 90/21 and 24/5

1^st number: 4 6/21, 2^nd number: 4 4/5

90/21 + 24/5 is 318/35.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 5 is 105

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 21 × 5 = 105,
90/21 = 90 × 5/21 × 5 = 450/105
Likewise, for the 2nd fraction, since 5 × 21 = 105,
24/5 = 24 × 21/5 × 21 = 504/105
Add the two like fractions:
450/105 + 504/105 = 450 + 504/105 = 954/105
954/105 simplified gives 318/35
So, 90/21 + 24/5 = 318/35
In mixed form: 93/35

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