Add 54/70 and 80/56
1st number: 54/70, 2nd number: 1 24/56
54/70 + 80/56 is 11/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
54/70 = 54 × 4/70 × 4 = 216/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
80/56 = 80 × 5/56 × 5 = 400/280 - Add the two like fractions:
216/280 + 400/280 = 216 + 400/280 = 616/280 - 616/280 simplified gives 11/5
- So, 54/70 + 80/56 = 11/5
In mixed form: 21/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: