Add 80/64 and 84/40
1st number: 1 16/64, 2nd number: 2 4/40
80/64 + 84/40 is 67/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 40 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 64 × 5 = 320,
80/64 = 80 × 5/64 × 5 = 400/320 - Likewise, for the 2nd fraction, since 40 × 8 = 320,
84/40 = 84 × 8/40 × 8 = 672/320 - Add the two like fractions:
400/320 + 672/320 = 400 + 672/320 = 1072/320 - 1072/320 simplified gives 67/20
- So, 80/64 + 84/40 = 67/20
In mixed form: 37/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/64+84/80