Add 12/64 and 9/20
12/64 + 9/20 is 51/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 20 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 64 × 5 = 320,
12/64 = 12 × 5/64 × 5 = 60/320 - Likewise, for the 2nd fraction, since 20 × 16 = 320,
9/20 = 9 × 16/20 × 16 = 144/320 - Add the two like fractions:
60/320 + 144/320 = 60 + 144/320 = 204/320 - 204/320 simplified gives 51/80
- So, 12/64 + 9/20 = 51/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/64+9/20 12/64+18/20 12/64+9/40 36/64+9/20 12/64+27/20 12/64+9/60 60/64+9/20 12/64+45/20 84/64+9/20 12/64+63/20