Add 15/10 and 81/64
1st number: 1 5/10, 2nd number: 1 17/64
15/10 + 81/64 is 177/64.
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,
15/10 = 15 × 32/10 × 32 = 480/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
81/64 = 81 × 5/64 × 5 = 405/320 - Add the two like fractions:
480/320 + 405/320 = 480 + 405/320 = 885/320 - 885/320 simplified gives 177/64
- So, 15/10 + 81/64 = 177/64
In mixed form: 249/64
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/10+81/64 15/20+81/64 45/10+81/64 15/30+81/64 75/10+81/64 15/50+81/64 15/70+81/64