Add 42/2 and 15/72, Solve 21 0/2 + 15/72 as a fraction

Add 42/2 and 15/72

1^st number: 21 0/2, 2^nd number: 15/72

42/2 + 15/72 is 509/24.

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,
42/2 = 42 × 36/2 × 36 = 1512/72
Likewise, for the 2nd fraction, since 72 × 1 = 72,
15/72 = 15 × 1/72 × 1 = 15/72
Add the two like fractions:
1512/72 + 15/72 = 1512 + 15/72 = 1527/72
1527/72 simplified gives 509/24
So, 42/2 + 15/72 = 509/24
In mixed form: 215/24

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