Add 20/56 and 30/81
20/56 + 30/81 is 275/378.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 81 is 4536
Next, find the equivalent fraction of both fractional numbers with denominator 4536 - For the 1st fraction, since 56 × 81 = 4536,
20/56 = 20 × 81/56 × 81 = 1620/4536 - Likewise, for the 2nd fraction, since 81 × 56 = 4536,
30/81 = 30 × 56/81 × 56 = 1680/4536 - Add the two like fractions:
1620/4536 + 1680/4536 = 1620 + 1680/4536 = 3300/4536 - 3300/4536 simplified gives 275/378
- So, 20/56 + 30/81 = 275/378
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