Add 28/10 and 90/64
1st number: 2 8/10, 2nd number: 1 26/64
28/10 + 90/64 is 673/160.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 64 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 10 × 32 = 320,
28/10 = 28 × 32/10 × 32 = 896/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
90/64 = 90 × 5/64 × 5 = 450/320 - Add the two like fractions:
896/320 + 450/320 = 896 + 450/320 = 1346/320 - 1346/320 simplified gives 673/160
- So, 28/10 + 90/64 = 673/160
In mixed form: 433/160
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/10+90/64 28/20+90/64 84/10+90/64 28/30+90/64 28/50+90/64 28/70+90/64