Add 3/7 and 12/20
3/7 + 12/20 is 36/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 7 × 20 = 140,
3/7 = 3 × 20/7 × 20 = 60/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
12/20 = 12 × 7/20 × 7 = 84/140 - Add the two like fractions:
60/140 + 84/140 = 60 + 84/140 = 144/140 - 144/140 simplified gives 36/35
- So, 3/7 + 12/20 = 36/35
In mixed form: 11/35
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