Add 20/5 and 80/70
1st number: 4 0/5, 2nd number: 1 10/70
20/5 + 80/70 is 36/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 5 × 14 = 70,
20/5 = 20 × 14/5 × 14 = 280/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
80/70 = 80 × 1/70 × 1 = 80/70 - Add the two like fractions:
280/70 + 80/70 = 280 + 80/70 = 360/70 - 360/70 simplified gives 36/7
- So, 20/5 + 80/70 = 36/7
In mixed form: 51/7
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