Add 9/2 and 21/56, Solve 4 1/2 + 21/56 as a fraction

Add 9/2 and 21/56

1^st number: 4 1/2, 2^nd number: 21/56

9/2 + 21/56 is 39/8.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 56 is 56

Next, find the equivalent fraction of both fractional numbers with denominator 56
For the 1st fraction, since 2 × 28 = 56,
9/2 = 9 × 28/2 × 28 = 252/56
Likewise, for the 2nd fraction, since 56 × 1 = 56,
21/56 = 21 × 1/56 × 1 = 21/56
Add the two like fractions:
252/56 + 21/56 = 252 + 21/56 = 273/56
273/56 simplified gives 39/8
So, 9/2 + 21/56 = 39/8
In mixed form: 47/8

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