Add 90/12 and 6/40
1st number: 7 6/12, 2nd number: 6/40
90/12 + 6/40 is 153/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
90/12 = 90 × 10/12 × 10 = 900/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
6/40 = 6 × 3/40 × 3 = 18/120 - Add the two like fractions:
900/120 + 18/120 = 900 + 18/120 = 918/120 - 918/120 simplified gives 153/20
- So, 90/12 + 6/40 = 153/20
In mixed form: 713/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+12/40 90/24+6/40 90/12+6/80 90/12+18/40 90/36+6/40 90/12+30/40 90/60+6/40 90/12+42/40 90/84+6/40