Add 15/75 and 4/64
15/75 + 4/64 is 21/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 64 is 4800
Next, find the equivalent fraction of both fractional numbers with denominator 4800 - For the 1st fraction, since 75 × 64 = 4800,
15/75 = 15 × 64/75 × 64 = 960/4800 - Likewise, for the 2nd fraction, since 64 × 75 = 4800,
4/64 = 4 × 75/64 × 75 = 300/4800 - Add the two like fractions:
960/4800 + 300/4800 = 960 + 300/4800 = 1260/4800 - 1260/4800 simplified gives 21/80
- So, 15/75 + 4/64 = 21/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/75+4/64 15/75+8/64 45/75+4/64 15/75+12/64 15/75+20/64 15/75+28/64