Add 90/12 and 35/40
1st number: 7 6/12, 2nd number: 35/40
90/12 + 35/40 is 67/8.
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,
35/40 = 35 × 3/40 × 3 = 105/120 - Add the two like fractions:
900/120 + 105/120 = 900 + 105/120 = 1005/120 - 1005/120 simplified gives 67/8
- So, 90/12 + 35/40 = 67/8
In mixed form: 83/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+70/40 90/24+35/40 90/12+35/80 90/36+35/40 90/60+35/40 90/84+35/40