Add 70/25 and 35/21
1st number: 2 20/25, 2nd number: 1 14/21
70/25 + 35/21 is 67/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 21 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 25 × 21 = 525,
70/25 = 70 × 21/25 × 21 = 1470/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
35/21 = 35 × 25/21 × 25 = 875/525 - Add the two like fractions:
1470/525 + 875/525 = 1470 + 875/525 = 2345/525 - 2345/525 simplified gives 67/15
- So, 70/25 + 35/21 = 67/15
In mixed form: 47/15
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