Add 70/20 and 7/80
1st number: 3 10/20, 2nd number: 7/80
70/20 + 7/80 is 287/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
70/20 = 70 × 4/20 × 4 = 280/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
7/80 = 7 × 1/80 × 1 = 7/80 - Add the two like fractions:
280/80 + 7/80 = 280 + 7/80 = 287/80 - So, 70/20 + 7/80 = 287/80
In mixed form: 347/80
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