Add 18/81 and 42/70
18/81 + 42/70 is 37/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 70 is 5670
Next, find the equivalent fraction of both fractional numbers with denominator 5670 - For the 1st fraction, since 81 × 70 = 5670,
18/81 = 18 × 70/81 × 70 = 1260/5670 - Likewise, for the 2nd fraction, since 70 × 81 = 5670,
42/70 = 42 × 81/70 × 81 = 3402/5670 - Add the two like fractions:
1260/5670 + 3402/5670 = 1260 + 3402/5670 = 4662/5670 - 4662/5670 simplified gives 37/45
- So, 18/81 + 42/70 = 37/45
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