Add 28/4 and 21/24, Solve 7 0/4 + 21/24 as a fraction

Add 28/4 and 21/24

1^st number: 7 0/4, 2^nd number: 21/24

28/4 + 21/24 is 63/8.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 24 is 24

Next, find the equivalent fraction of both fractional numbers with denominator 24
For the 1st fraction, since 4 × 6 = 24,
28/4 = 28 × 6/4 × 6 = 168/24
Likewise, for the 2nd fraction, since 24 × 1 = 24,
21/24 = 21 × 1/24 × 1 = 21/24
Add the two like fractions:
168/24 + 21/24 = 168 + 21/24 = 189/24
189/24 simplified gives 63/8
So, 28/4 + 21/24 = 63/8
In mixed form: 77/8

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