Add 15/25 and 21/60
15/25 + 21/60 is 19/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 60 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 25 × 12 = 300,
15/25 = 15 × 12/25 × 12 = 180/300 - Likewise, for the 2nd fraction, since 60 × 5 = 300,
21/60 = 21 × 5/60 × 5 = 105/300 - Add the two like fractions:
180/300 + 105/300 = 180 + 105/300 = 285/300 - 285/300 simplified gives 19/20
- So, 15/25 + 21/60 = 19/20
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