Add 70/21 and 8/25
1st number: 3 7/21, 2nd number: 8/25
70/21 + 8/25 is 274/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 25 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 21 × 25 = 525,
70/21 = 70 × 25/21 × 25 = 1750/525 - Likewise, for the 2nd fraction, since 25 × 21 = 525,
8/25 = 8 × 21/25 × 21 = 168/525 - Add the two like fractions:
1750/525 + 168/525 = 1750 + 168/525 = 1918/525 - 1918/525 simplified gives 274/75
- So, 70/21 + 8/25 = 274/75
In mixed form: 349/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/21+16/25 70/42+8/25 70/21+8/50 70/21+24/25 70/63+8/25 70/21+8/75 70/21+40/25 70/21+56/25