Add 54/72 and 20/40
54/72 + 20/40 is 5/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 40 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 40 × 9 = 360,
20/40 = 20 × 9/40 × 9 = 180/360 - Add the two like fractions:
270/360 + 180/360 = 270 + 180/360 = 450/360 - 450/360 simplified gives 5/4
- So, 54/72 + 20/40 = 5/4
In mixed form: 11/4
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