Add 15/25 and 4/45
15/25 + 4/45 is 31/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 45 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 25 × 9 = 225,
15/25 = 15 × 9/25 × 9 = 135/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
4/45 = 4 × 5/45 × 5 = 20/225 - Add the two like fractions:
135/225 + 20/225 = 135 + 20/225 = 155/225 - 155/225 simplified gives 31/45
- So, 15/25 + 4/45 = 31/45
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