Add 90/21 and 1/25
1st number: 4 6/21, 2nd number: 1/25
90/21 + 1/25 is 757/175.
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,
90/21 = 90 × 25/21 × 25 = 2250/525 - Likewise, for the 2nd fraction, since 25 × 21 = 525,
1/25 = 1 × 21/25 × 21 = 21/525 - Add the two like fractions:
2250/525 + 21/525 = 2250 + 21/525 = 2271/525 - 2271/525 simplified gives 757/175
- So, 90/21 + 1/25 = 757/175
In mixed form: 457/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/21+2/25 90/42+1/25 90/21+1/50 90/21+3/25 90/63+1/25 90/21+1/75 90/21+5/25 90/21+7/25