Add 45/56 and 70/20
1st number: 45/56, 2nd number: 3 10/20
45/56 + 70/20 is 241/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 20 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
45/56 = 45 × 5/56 × 5 = 225/280 - Likewise, for the 2nd fraction, since 20 × 14 = 280,
70/20 = 70 × 14/20 × 14 = 980/280 - Add the two like fractions:
225/280 + 980/280 = 225 + 980/280 = 1205/280 - 1205/280 simplified gives 241/56
- So, 45/56 + 70/20 = 241/56
In mixed form: 417/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/56+70/20 45/56+70/40 45/56+70/60