Add 84/80 and 15/64
1st number: 1 4/80, 2nd number: 15/64
84/80 + 15/64 is 411/320.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 64 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 80 × 4 = 320,
84/80 = 84 × 4/80 × 4 = 336/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
15/64 = 15 × 5/64 × 5 = 75/320 - Add the two like fractions:
336/320 + 75/320 = 336 + 75/320 = 411/320 - So, 84/80 + 15/64 = 411/320
In mixed form: 191/320
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/80+30/64 84/80+45/64 84/80+75/64