Add 15/25 and 45/90
15/25 + 45/90 is 11/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
15/25 = 15 × 18/25 × 18 = 270/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
45/90 = 45 × 5/90 × 5 = 225/450 - Add the two like fractions:
270/450 + 225/450 = 270 + 225/450 = 495/450 - 495/450 simplified gives 11/10
- So, 15/25 + 45/90 = 11/10
In mixed form: 11/10
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