Add 28/20 and 80/7
1st number: 1 8/20, 2nd number: 11 3/7
28/20 + 80/7 is 449/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 7 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
28/20 = 28 × 7/20 × 7 = 196/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
80/7 = 80 × 20/7 × 20 = 1600/140 - Add the two like fractions:
196/140 + 1600/140 = 196 + 1600/140 = 1796/140 - 1796/140 simplified gives 449/35
- So, 28/20 + 80/7 = 449/35
In mixed form: 1229/35
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