Add 28/81 and 20/60
28/81 + 20/60 is 55/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 60 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 81 × 20 = 1620,
28/81 = 28 × 20/81 × 20 = 560/1620 - Likewise, for the 2nd fraction, since 60 × 27 = 1620,
20/60 = 20 × 27/60 × 27 = 540/1620 - Add the two like fractions:
560/1620 + 540/1620 = 560 + 540/1620 = 1100/1620 - 1100/1620 simplified gives 55/81
- So, 28/81 + 20/60 = 55/81
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