Add 72/96 and 9/40
72/96 + 9/40 is 39/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 40 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 96 × 5 = 480,
72/96 = 72 × 5/96 × 5 = 360/480 - Likewise, for the 2nd fraction, since 40 × 12 = 480,
9/40 = 9 × 12/40 × 12 = 108/480 - Add the two like fractions:
360/480 + 108/480 = 360 + 108/480 = 468/480 - 468/480 simplified gives 39/40
- So, 72/96 + 9/40 = 39/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/96+18/40 72/96+9/80 72/96+27/40 72/96+45/40 72/96+63/40