Add 90/40 and 25/80
1st number: 2 10/40, 2nd number: 25/80
90/40 + 25/80 is 41/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 40 × 2 = 80,
90/40 = 90 × 2/40 × 2 = 180/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
25/80 = 25 × 1/80 × 1 = 25/80 - Add the two like fractions:
180/80 + 25/80 = 180 + 25/80 = 205/80 - 205/80 simplified gives 41/16
- So, 90/40 + 25/80 = 41/16
In mixed form: 29/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/40+50/80 90/80+25/80 90/40+75/80