Add 12/15 and 20/54
12/15 + 20/54 is 158/135.
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,
12/15 = 12 × 18/15 × 18 = 216/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
20/54 = 20 × 5/54 × 5 = 100/270 - Add the two like fractions:
216/270 + 100/270 = 216 + 100/270 = 316/270 - 316/270 simplified gives 158/135
- So, 12/15 + 20/54 = 158/135
In mixed form: 123/135
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