Add 15/90 and 42/72
15/90 + 42/72 is 3/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
15/90 = 15 × 4/90 × 4 = 60/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
42/72 = 42 × 5/72 × 5 = 210/360 - Add the two like fractions:
60/360 + 210/360 = 60 + 210/360 = 270/360 - 270/360 simplified gives 3/4
- So, 15/90 + 42/72 = 3/4
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