Add 80/25 and 21/70
1st number: 3 5/25, 2nd number: 21/70
80/25 + 21/70 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 70 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 25 × 14 = 350,
80/25 = 80 × 14/25 × 14 = 1120/350 - Likewise, for the 2nd fraction, since 70 × 5 = 350,
21/70 = 21 × 5/70 × 5 = 105/350 - Add the two like fractions:
1120/350 + 105/350 = 1120 + 105/350 = 1225/350 - 1225/350 simplified gives 7/2
- So, 80/25 + 21/70 = 7/2
In mixed form: 31/2
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