Add 36/72 and 72/21
1st number: 36/72, 2nd number: 3 9/21
36/72 + 72/21 is 55/14.
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,
36/72 = 36 × 7/72 × 7 = 252/504 - Likewise, for the 2nd fraction, since 21 × 24 = 504,
72/21 = 72 × 24/21 × 24 = 1728/504 - Add the two like fractions:
252/504 + 1728/504 = 252 + 1728/504 = 1980/504 - 1980/504 simplified gives 55/14
- So, 36/72 + 72/21 = 55/14
In mixed form: 313/14
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