Add 90/80 and 3/40
1st number: 1 10/80, 2nd number: 3/40
90/80 + 3/40 is 6/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
90/80 = 90 × 1/80 × 1 = 90/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
3/40 = 3 × 2/40 × 2 = 6/80 - Add the two like fractions:
90/80 + 6/80 = 90 + 6/80 = 96/80 - 96/80 simplified gives 6/5
- So, 90/80 + 3/40 = 6/5
In mixed form: 11/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/80+6/40 90/80+3/80 90/80+9/40 90/80+15/40 90/80+21/40