Add 12/20 and 42/35
1st number: 12/20, 2nd number: 1 7/35
12/20 + 42/35 is 9/5.
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,
12/20 = 12 × 7/20 × 7 = 84/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
42/35 = 42 × 4/35 × 4 = 168/140 - Add the two like fractions:
84/140 + 168/140 = 84 + 168/140 = 252/140 - 252/140 simplified gives 9/5
- So, 12/20 + 42/35 = 9/5
In mixed form: 14/5
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