Add 20/14 and 81/72
1st number: 1 6/14, 2nd number: 1 9/72
20/14 + 81/72 is 143/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 14 × 36 = 504,
20/14 = 20 × 36/14 × 36 = 720/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
81/72 = 81 × 7/72 × 7 = 567/504 - Add the two like fractions:
720/504 + 567/504 = 720 + 567/504 = 1287/504 - 1287/504 simplified gives 143/56
- So, 20/14 + 81/72 = 143/56
In mixed form: 231/56
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