Add 72/21 and 27/72
1st number: 3 9/21, 2nd number: 27/72
72/21 + 27/72 is 213/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 21 × 24 = 504,
72/21 = 72 × 24/21 × 24 = 1728/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
27/72 = 27 × 7/72 × 7 = 189/504 - Add the two like fractions:
1728/504 + 189/504 = 1728 + 189/504 = 1917/504 - 1917/504 simplified gives 213/56
- So, 72/21 + 27/72 = 213/56
In mixed form: 345/56
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