Add 5/18 and 12/20
5/18 + 12/20 is 79/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
5/18 = 5 × 10/18 × 10 = 50/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
12/20 = 12 × 9/20 × 9 = 108/180 - Add the two like fractions:
50/180 + 108/180 = 50 + 108/180 = 158/180 - 158/180 simplified gives 79/90
- So, 5/18 + 12/20 = 79/90
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