Add 18/20 and 35/81
18/20 + 35/81 is 1079/810.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 81 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 20 × 81 = 1620,
18/20 = 18 × 81/20 × 81 = 1458/1620 - Likewise, for the 2nd fraction, since 81 × 20 = 1620,
35/81 = 35 × 20/81 × 20 = 700/1620 - Add the two like fractions:
1458/1620 + 700/1620 = 1458 + 700/1620 = 2158/1620 - 2158/1620 simplified gives 1079/810
- So, 18/20 + 35/81 = 1079/810
In mixed form: 1269/810
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