Add 90/2 and 21/72, Solve 45 0/2 + 21/72 as a fraction

Add 90/2 and 21/72

1^st number: 45 0/2, 2^nd number: 21/72

90/2 + 21/72 is 1087/24.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 72 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 2 × 36 = 72,
90/2 = 90 × 36/2 × 36 = 3240/72
Likewise, for the 2nd fraction, since 72 × 1 = 72,
21/72 = 21 × 1/72 × 1 = 21/72
Add the two like fractions:
3240/72 + 21/72 = 3240 + 21/72 = 3261/72
3261/72 simplified gives 1087/24
So, 90/2 + 21/72 = 1087/24
In mixed form: 457/24

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