Add 18/20 and 27/70
18/20 + 27/70 is 9/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
18/20 = 18 × 7/20 × 7 = 126/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
27/70 = 27 × 2/70 × 2 = 54/140 - Add the two like fractions:
126/140 + 54/140 = 126 + 54/140 = 180/140 - 180/140 simplified gives 9/7
- So, 18/20 + 27/70 = 9/7
In mixed form: 12/7
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