Add 40/75 and 4/20
40/75 + 4/20 is 11/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 20 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
40/75 = 40 × 4/75 × 4 = 160/300 - Likewise, for the 2nd fraction, since 20 × 15 = 300,
4/20 = 4 × 15/20 × 15 = 60/300 - Add the two like fractions:
160/300 + 60/300 = 160 + 60/300 = 220/300 - 220/300 simplified gives 11/15
- So, 40/75 + 4/20 = 11/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/75+4/20 40/75+8/20 40/75+4/40 40/75+12/20 40/75+4/60 40/75+28/20