Add 20/30 and 54/72
20/30 + 54/72 is 17/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 30 × 12 = 360,
20/30 = 20 × 12/30 × 12 = 240/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
54/72 = 54 × 5/72 × 5 = 270/360 - Add the two like fractions:
240/360 + 270/360 = 240 + 270/360 = 510/360 - 510/360 simplified gives 17/12
- So, 20/30 + 54/72 = 17/12
In mixed form: 15/12
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