Add 20/80 and 15/18
20/80 + 15/18 is 13/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 18 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
20/80 = 20 × 9/80 × 9 = 180/720 - Likewise, for the 2nd fraction, since 18 × 40 = 720,
15/18 = 15 × 40/18 × 40 = 600/720 - Add the two like fractions:
180/720 + 600/720 = 180 + 600/720 = 780/720 - 780/720 simplified gives 13/12
- So, 20/80 + 15/18 = 13/12
In mixed form: 11/12
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