Add 1/12 and 21/90
1/12 + 21/90 is 19/60.
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,
21/90 = 21 × 2/90 × 2 = 42/180 - Add the two like fractions:
15/180 + 42/180 = 15 + 42/180 = 57/180 - 57/180 simplified gives 19/60
- So, 1/12 + 21/90 = 19/60
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