Add 24/27 and 90/21, Solve 24/27 + 4 6/21 as a fraction

Add 24/27 and 90/21

1^st number: 24/27, 2^nd number: 4 6/21

24/27 + 90/21 is 326/63.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 21 is 189

Next, find the equivalent fraction of both fractional numbers with denominator 189
For the 1st fraction, since 27 × 7 = 189,
24/27 = 24 × 7/27 × 7 = 168/189
Likewise, for the 2nd fraction, since 21 × 9 = 189,
90/21 = 90 × 9/21 × 9 = 810/189
Add the two like fractions:
168/189 + 810/189 = 168 + 810/189 = 978/189
978/189 simplified gives 326/63
So, 24/27 + 90/21 = 326/63
In mixed form: 511/63

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