Add 15/5 and 45/18
1st number: 3 0/5, 2nd number: 2 9/18
15/5 + 45/18 is 11/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
15/5 = 15 × 18/5 × 18 = 270/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
45/18 = 45 × 5/18 × 5 = 225/90 - Add the two like fractions:
270/90 + 225/90 = 270 + 225/90 = 495/90 - 495/90 simplified gives 11/2
- So, 15/5 + 45/18 = 11/2
In mixed form: 51/2
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