Add 90/75 and 9/40
1st number: 1 15/75, 2nd number: 9/40
90/75 + 9/40 is 57/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 40 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 75 × 8 = 600,
90/75 = 90 × 8/75 × 8 = 720/600 - Likewise, for the 2nd fraction, since 40 × 15 = 600,
9/40 = 9 × 15/40 × 15 = 135/600 - Add the two like fractions:
720/600 + 135/600 = 720 + 135/600 = 855/600 - 855/600 simplified gives 57/40
- So, 90/75 + 9/40 = 57/40
In mixed form: 117/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/75+18/40 90/75+9/80 90/75+27/40 90/75+45/40 90/75+63/40