Add 80/25 and 70/56
1st number: 3 5/25, 2nd number: 1 14/56
80/25 + 70/56 is 89/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 56 is 1400
Next, find the equivalent fraction of both fractional numbers with denominator 1400 - For the 1st fraction, since 25 × 56 = 1400,
80/25 = 80 × 56/25 × 56 = 4480/1400 - Likewise, for the 2nd fraction, since 56 × 25 = 1400,
70/56 = 70 × 25/56 × 25 = 1750/1400 - Add the two like fractions:
4480/1400 + 1750/1400 = 4480 + 1750/1400 = 6230/1400 - 6230/1400 simplified gives 89/20
- So, 80/25 + 70/56 = 89/20
In mixed form: 49/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/50+70/56 80/75+70/56