Add 45/30 and 72/18
1st number: 1 15/30, 2nd number: 4 0/18
45/30 + 72/18 is 11/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
45/30 = 45 × 3/30 × 3 = 135/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
72/18 = 72 × 5/18 × 5 = 360/90 - Add the two like fractions:
135/90 + 360/90 = 135 + 360/90 = 495/90 - 495/90 simplified gives 11/2
- So, 45/30 + 72/18 = 11/2
In mixed form: 51/2
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