Add 40/20 and 90/60
1st number: 2 0/20, 2nd number: 1 30/60
40/20 + 90/60 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
40/20 = 40 × 3/20 × 3 = 120/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
90/60 = 90 × 1/60 × 1 = 90/60 - Add the two like fractions:
120/60 + 90/60 = 120 + 90/60 = 210/60 - 210/60 simplified gives 7/2
- So, 40/20 + 90/60 = 7/2
In mixed form: 31/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20+90/60 40/60+90/60