Add 49/72 and 81/21
1st number: 49/72, 2nd number: 3 18/21
49/72 + 81/21 is 2287/504.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 21 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
49/72 = 49 × 7/72 × 7 = 343/504 - Likewise, for the 2nd fraction, since 21 × 24 = 504,
81/21 = 81 × 24/21 × 24 = 1944/504 - Add the two like fractions:
343/504 + 1944/504 = 343 + 1944/504 = 2287/504 - So, 49/72 + 81/21 = 2287/504
In mixed form: 4271/504
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