Add 28/15 and 72/54
1st number: 1 13/15, 2nd number: 1 18/54
28/15 + 72/54 is 16/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 15 × 18 = 270,
28/15 = 28 × 18/15 × 18 = 504/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
72/54 = 72 × 5/54 × 5 = 360/270 - Add the two like fractions:
504/270 + 360/270 = 504 + 360/270 = 864/270 - 864/270 simplified gives 16/5
- So, 28/15 + 72/54 = 16/5
In mixed form: 31/5
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