Add 25/40 and 90/60
1st number: 25/40, 2nd number: 1 30/60
25/40 + 90/60 is 17/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 60 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
25/40 = 25 × 3/40 × 3 = 75/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
90/60 = 90 × 2/60 × 2 = 180/120 - Add the two like fractions:
75/120 + 180/120 = 75 + 180/120 = 255/120 - 255/120 simplified gives 17/8
- So, 25/40 + 90/60 = 17/8
In mixed form: 21/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/40+90/60 25/80+90/60 75/40+90/60