Add 21/42 and 9/25
21/42 + 9/25 is 43/50.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 25 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 42 × 25 = 1050,
21/42 = 21 × 25/42 × 25 = 525/1050 - Likewise, for the 2nd fraction, since 25 × 42 = 1050,
9/25 = 9 × 42/25 × 42 = 378/1050 - Add the two like fractions:
525/1050 + 378/1050 = 525 + 378/1050 = 903/1050 - 903/1050 simplified gives 43/50
- So, 21/42 + 9/25 = 43/50
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