Add 80/7 and 18/20
1st number: 11 3/7, 2nd number: 18/20
80/7 + 18/20 is 863/70.
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,
80/7 = 80 × 20/7 × 20 = 1600/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
18/20 = 18 × 7/20 × 7 = 126/140 - Add the two like fractions:
1600/140 + 126/140 = 1600 + 126/140 = 1726/140 - 1726/140 simplified gives 863/70
- So, 80/7 + 18/20 = 863/70
In mixed form: 1223/70
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