Add 12/21 and 36/72
12/21 + 36/72 is 15/14.
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,
12/21 = 12 × 24/21 × 24 = 288/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
36/72 = 36 × 7/72 × 7 = 252/504 - Add the two like fractions:
288/504 + 252/504 = 288 + 252/504 = 540/504 - 540/504 simplified gives 15/14
- So, 12/21 + 36/72 = 15/14
In mixed form: 11/14
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