Add 18/81 and 28/70
18/81 + 28/70 is 28/45.
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,
28/70 = 28 × 81/70 × 81 = 2268/5670 - Add the two like fractions:
1260/5670 + 2268/5670 = 1260 + 2268/5670 = 3528/5670 - 3528/5670 simplified gives 28/45
- So, 18/81 + 28/70 = 28/45
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