Add 15/4 and 9/72, Solve 3 3/4 + 9/72 as a fraction

Add 15/4 and 9/72

1^st number: 3 3/4, 2^nd number: 9/72

15/4 + 9/72 is 31/8.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 72 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 4 × 18 = 72,
15/4 = 15 × 18/4 × 18 = 270/72
Likewise, for the 2nd fraction, since 72 × 1 = 72,
9/72 = 9 × 1/72 × 1 = 9/72
Add the two like fractions:
270/72 + 9/72 = 270 + 9/72 = 279/72
279/72 simplified gives 31/8
So, 15/4 + 9/72 = 31/8
In mixed form: 37/8

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