Add 18/20 and 27/35
18/20 + 27/35 is 117/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 35 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 35 × 4 = 140,
27/35 = 27 × 4/35 × 4 = 108/140 - Add the two like fractions:
126/140 + 108/140 = 126 + 108/140 = 234/140 - 234/140 simplified gives 117/70
- So, 18/20 + 27/35 = 117/70
In mixed form: 147/70
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