Add 45/64 and 8/40
45/64 + 8/40 is 289/320.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 40 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 64 × 5 = 320,
45/64 = 45 × 5/64 × 5 = 225/320 - Likewise, for the 2nd fraction, since 40 × 8 = 320,
8/40 = 8 × 8/40 × 8 = 64/320 - Add the two like fractions:
225/320 + 64/320 = 225 + 64/320 = 289/320 - So, 45/64 + 8/40 = 289/320
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/64+8/40 45/64+16/40 45/64+8/80 45/64+24/40 45/64+56/40