Add 15/30 and 18/28
15/30 + 18/28 is 8/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
15/30 = 15 × 14/30 × 14 = 210/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
18/28 = 18 × 15/28 × 15 = 270/420 - Add the two like fractions:
210/420 + 270/420 = 210 + 270/420 = 480/420 - 480/420 simplified gives 8/7
- So, 15/30 + 18/28 = 8/7
In mixed form: 11/7
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