Add 60/81 and 15/20
60/81 + 15/20 is 161/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 20 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 81 × 20 = 1620,
60/81 = 60 × 20/81 × 20 = 1200/1620 - Likewise, for the 2nd fraction, since 20 × 81 = 1620,
15/20 = 15 × 81/20 × 81 = 1215/1620 - Add the two like fractions:
1200/1620 + 1215/1620 = 1200 + 1215/1620 = 2415/1620 - 2415/1620 simplified gives 161/108
- So, 60/81 + 15/20 = 161/108
In mixed form: 153/108
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