Add 60/40 and 20/45
1st number: 1 20/40, 2nd number: 20/45
60/40 + 20/45 is 35/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
60/40 = 60 × 9/40 × 9 = 540/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
20/45 = 20 × 8/45 × 8 = 160/360 - Add the two like fractions:
540/360 + 160/360 = 540 + 160/360 = 700/360 - 700/360 simplified gives 35/18
- So, 60/40 + 20/45 = 35/18
In mixed form: 117/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/40+40/45 60/80+20/45 60/40+20/90 60/40+60/45