Add 10/20 and 30/72
10/20 + 30/72 is 11/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 20 × 18 = 360,
10/20 = 10 × 18/20 × 18 = 180/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
30/72 = 30 × 5/72 × 5 = 150/360 - Add the two like fractions:
180/360 + 150/360 = 180 + 150/360 = 330/360 - 330/360 simplified gives 11/12
- So, 10/20 + 30/72 = 11/12
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