Add 45/7 and 12/20
1st number: 6 3/7, 2nd number: 12/20
45/7 + 12/20 is 246/35.
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,
45/7 = 45 × 20/7 × 20 = 900/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
12/20 = 12 × 7/20 × 7 = 84/140 - Add the two like fractions:
900/140 + 84/140 = 900 + 84/140 = 984/140 - 984/140 simplified gives 246/35
- So, 45/7 + 12/20 = 246/35
In mixed form: 71/35
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