Add 56/72 and 20/30
56/72 + 20/30 is 13/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 30 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
56/72 = 56 × 5/72 × 5 = 280/360 - Likewise, for the 2nd fraction, since 30 × 12 = 360,
20/30 = 20 × 12/30 × 12 = 240/360 - Add the two like fractions:
280/360 + 240/360 = 280 + 240/360 = 520/360 - 520/360 simplified gives 13/9
- So, 56/72 + 20/30 = 13/9
In mixed form: 14/9
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