Add 45/56 and 18/60
45/56 + 18/60 is 309/280.
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,
18/60 = 18 × 14/60 × 14 = 252/840 - Add the two like fractions:
675/840 + 252/840 = 675 + 252/840 = 927/840 - 927/840 simplified gives 309/280
- So, 45/56 + 18/60 = 309/280
In mixed form: 129/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/56+18/60 45/56+36/60 45/56+54/60 45/56+90/60