Add 4/72 and 21/15
1st number: 4/72, 2nd number: 1 6/15
4/72 + 21/15 is 131/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 15 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
4/72 = 4 × 5/72 × 5 = 20/360 - Likewise, for the 2nd fraction, since 15 × 24 = 360,
21/15 = 21 × 24/15 × 24 = 504/360 - Add the two like fractions:
20/360 + 504/360 = 20 + 504/360 = 524/360 - 524/360 simplified gives 131/90
- So, 4/72 + 21/15 = 131/90
In mixed form: 141/90
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