Add 90/64 and 3/20
1st number: 1 26/64, 2nd number: 3/20
90/64 + 3/20 is 249/160.
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,
90/64 = 90 × 5/64 × 5 = 450/320 - Likewise, for the 2nd fraction, since 20 × 16 = 320,
3/20 = 3 × 16/20 × 16 = 48/320 - Add the two like fractions:
450/320 + 48/320 = 450 + 48/320 = 498/320 - 498/320 simplified gives 249/160
- So, 90/64 + 3/20 = 249/160
In mixed form: 189/160
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/64+6/20 90/64+3/40 90/64+9/20 90/64+3/60 90/64+15/20 90/64+21/20