Add 27/72 and 72/90
27/72 + 72/90 is 47/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
27/72 = 27 × 5/72 × 5 = 135/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
72/90 = 72 × 4/90 × 4 = 288/360 - Add the two like fractions:
135/360 + 288/360 = 135 + 288/360 = 423/360 - 423/360 simplified gives 47/40
- So, 27/72 + 72/90 = 47/40
In mixed form: 17/40
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