Add 21/45 and 10/25
21/45 + 10/25 is 13/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 25 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 45 × 5 = 225,
21/45 = 21 × 5/45 × 5 = 105/225 - Likewise, for the 2nd fraction, since 25 × 9 = 225,
10/25 = 10 × 9/25 × 9 = 90/225 - Add the two like fractions:
105/225 + 90/225 = 105 + 90/225 = 195/225 - 195/225 simplified gives 13/15
- So, 21/45 + 10/25 = 13/15
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