Add 1/12 and 20/90
1/12 + 20/90 is 11/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
1/12 = 1 × 15/12 × 15 = 15/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
20/90 = 20 × 2/90 × 2 = 40/180 - Add the two like fractions:
15/180 + 40/180 = 15 + 40/180 = 55/180 - 55/180 simplified gives 11/36
- So, 1/12 + 20/90 = 11/36
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