Add 21/70 and 28/25
1st number: 21/70, 2nd number: 1 3/25
21/70 + 28/25 is 71/50.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 25 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 70 × 5 = 350,
21/70 = 21 × 5/70 × 5 = 105/350 - Likewise, for the 2nd fraction, since 25 × 14 = 350,
28/25 = 28 × 14/25 × 14 = 392/350 - Add the two like fractions:
105/350 + 392/350 = 105 + 392/350 = 497/350 - 497/350 simplified gives 71/50
- So, 21/70 + 28/25 = 71/50
In mixed form: 121/50
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