Add 25/75 and 1/90
25/75 + 1/90 is 31/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 75 × 6 = 450,
25/75 = 25 × 6/75 × 6 = 150/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
1/90 = 1 × 5/90 × 5 = 5/450 - Add the two like fractions:
150/450 + 5/450 = 150 + 5/450 = 155/450 - 155/450 simplified gives 31/90
- So, 25/75 + 1/90 = 31/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/75+1/90 25/75+2/90 25/75+3/90 25/75+5/90 25/75+7/90