Add 90/12 and 20/64
1st number: 7 6/12, 2nd number: 20/64
90/12 + 20/64 is 125/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 64 is 192
Next, find the equivalent fraction of both fractional numbers with denominator 192 - For the 1st fraction, since 12 × 16 = 192,
90/12 = 90 × 16/12 × 16 = 1440/192 - Likewise, for the 2nd fraction, since 64 × 3 = 192,
20/64 = 20 × 3/64 × 3 = 60/192 - Add the two like fractions:
1440/192 + 60/192 = 1440 + 60/192 = 1500/192 - 1500/192 simplified gives 125/16
- So, 90/12 + 20/64 = 125/16
In mixed form: 713/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+40/64 90/24+20/64 90/12+60/64 90/36+20/64 90/60+20/64 90/84+20/64