Add 80/70 and 54/8
1st number: 1 10/70, 2nd number: 6 6/8
80/70 + 54/8 is 221/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 8 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
80/70 = 80 × 4/70 × 4 = 320/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
54/8 = 54 × 35/8 × 35 = 1890/280 - Add the two like fractions:
320/280 + 1890/280 = 320 + 1890/280 = 2210/280 - 2210/280 simplified gives 221/28
- So, 80/70 + 54/8 = 221/28
In mixed form: 725/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/70+54/16 80/70+54/24 80/70+54/40 80/70+54/56