Add 45/72 and 21/63
45/72 + 21/63 is 23/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
45/72 = 45 × 7/72 × 7 = 315/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
21/63 = 21 × 8/63 × 8 = 168/504 - Add the two like fractions:
315/504 + 168/504 = 315 + 168/504 = 483/504 - 483/504 simplified gives 23/24
- So, 45/72 + 21/63 = 23/24
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