Add 3/90 and 12/20
3/90 + 12/20 is 19/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
3/90 = 3 × 2/90 × 2 = 6/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
12/20 = 12 × 9/20 × 9 = 108/180 - Add the two like fractions:
6/180 + 108/180 = 6 + 108/180 = 114/180 - 114/180 simplified gives 19/30
- So, 3/90 + 12/20 = 19/30
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