Add 54/72 and 54/90
54/72 + 54/90 is 27/20.
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,
54/72 = 54 × 5/72 × 5 = 270/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
54/90 = 54 × 4/90 × 4 = 216/360 - Add the two like fractions:
270/360 + 216/360 = 270 + 216/360 = 486/360 - 486/360 simplified gives 27/20
- So, 54/72 + 54/90 = 27/20
In mixed form: 17/20
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