Add 27/72 and 21/14
1st number: 27/72, 2nd number: 1 7/14
27/72 + 21/14 is 15/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 14 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
27/72 = 27 × 7/72 × 7 = 189/504 - Likewise, for the 2nd fraction, since 14 × 36 = 504,
21/14 = 21 × 36/14 × 36 = 756/504 - Add the two like fractions:
189/504 + 756/504 = 189 + 756/504 = 945/504 - 945/504 simplified gives 15/8
- So, 27/72 + 21/14 = 15/8
In mixed form: 17/8
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