Add 15/75 and 27/40
15/75 + 27/40 is 7/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 40 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 75 × 8 = 600,
15/75 = 15 × 8/75 × 8 = 120/600 - Likewise, for the 2nd fraction, since 40 × 15 = 600,
27/40 = 27 × 15/40 × 15 = 405/600 - Add the two like fractions:
120/600 + 405/600 = 120 + 405/600 = 525/600 - 525/600 simplified gives 7/8
- So, 15/75 + 27/40 = 7/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/75+27/40 15/75+54/40 15/75+27/80 45/75+27/40 15/75+81/40