Add 1/20 and 75/64
1st number: 1/20, 2nd number: 1 11/64
1/20 + 75/64 is 391/320.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 64 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 20 × 16 = 320,
1/20 = 1 × 16/20 × 16 = 16/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
75/64 = 75 × 5/64 × 5 = 375/320 - Add the two like fractions:
16/320 + 375/320 = 16 + 375/320 = 391/320 - So, 1/20 + 75/64 = 391/320
In mixed form: 171/320
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20+75/64 1/40+75/64 3/20+75/64 1/60+75/64 5/20+75/64 7/20+75/64