Add 80/21 and 75/35
1st number: 3 17/21, 2nd number: 2 5/35
80/21 + 75/35 is 125/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
80/21 = 80 × 5/21 × 5 = 400/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
75/35 = 75 × 3/35 × 3 = 225/105 - Add the two like fractions:
400/105 + 225/105 = 400 + 225/105 = 625/105 - 625/105 simplified gives 125/21
- So, 80/21 + 75/35 = 125/21
In mixed form: 520/21
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