Add 45/56 and 80/60
1st number: 45/56, 2nd number: 1 20/60
45/56 + 80/60 is 359/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 60 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
45/56 = 45 × 15/56 × 15 = 675/840 - Likewise, for the 2nd fraction, since 60 × 14 = 840,
80/60 = 80 × 14/60 × 14 = 1120/840 - Add the two like fractions:
675/840 + 1120/840 = 675 + 1120/840 = 1795/840 - 1795/840 simplified gives 359/168
- So, 45/56 + 80/60 = 359/168
In mixed form: 223/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/56+80/60