Add 90/40 and 24/64
1st number: 2 10/40, 2nd number: 24/64
90/40 + 24/64 is 21/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 64 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 40 × 8 = 320,
90/40 = 90 × 8/40 × 8 = 720/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
24/64 = 24 × 5/64 × 5 = 120/320 - Add the two like fractions:
720/320 + 120/320 = 720 + 120/320 = 840/320 - 840/320 simplified gives 21/8
- So, 90/40 + 24/64 = 21/8
In mixed form: 25/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/40+48/64 90/80+24/64 90/40+72/64