Add 20/75 and 81/70
1st number: 20/75, 2nd number: 1 11/70
20/75 + 81/70 is 299/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 70 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
20/75 = 20 × 14/75 × 14 = 280/1050 - Likewise, for the 2nd fraction, since 70 × 15 = 1050,
81/70 = 81 × 15/70 × 15 = 1215/1050 - Add the two like fractions:
280/1050 + 1215/1050 = 280 + 1215/1050 = 1495/1050 - 1495/1050 simplified gives 299/210
- So, 20/75 + 81/70 = 299/210
In mixed form: 189/210
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