Add 21/72 and 7/75
21/72 + 7/75 is 77/200.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 75 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 72 × 25 = 1800,
21/72 = 21 × 25/72 × 25 = 525/1800 - Likewise, for the 2nd fraction, since 75 × 24 = 1800,
7/75 = 7 × 24/75 × 24 = 168/1800 - Add the two like fractions:
525/1800 + 168/1800 = 525 + 168/1800 = 693/1800 - 693/1800 simplified gives 77/200
- So, 21/72 + 7/75 = 77/200
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