Add 72/90 and 27/72
72/90 + 27/72 is 47/40.
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,
72/90 = 72 × 4/90 × 4 = 288/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
27/72 = 27 × 5/72 × 5 = 135/360 - Add the two like fractions:
288/360 + 135/360 = 288 + 135/360 = 423/360 - 423/360 simplified gives 47/40
- So, 72/90 + 27/72 = 47/40
In mixed form: 17/40
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