Add 21/72 and 63/84
21/72 + 63/84 is 25/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 84 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
21/72 = 21 × 7/72 × 7 = 147/504 - Likewise, for the 2nd fraction, since 84 × 6 = 504,
63/84 = 63 × 6/84 × 6 = 378/504 - Add the two like fractions:
147/504 + 378/504 = 147 + 378/504 = 525/504 - 525/504 simplified gives 25/24
- So, 21/72 + 63/84 = 25/24
In mixed form: 11/24
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