Add 15/56 and 90/60
1st number: 15/56, 2nd number: 1 30/60
15/56 + 90/60 is 99/56.
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,
15/56 = 15 × 15/56 × 15 = 225/840 - Likewise, for the 2nd fraction, since 60 × 14 = 840,
90/60 = 90 × 14/60 × 14 = 1260/840 - Add the two like fractions:
225/840 + 1260/840 = 225 + 1260/840 = 1485/840 - 1485/840 simplified gives 99/56
- So, 15/56 + 90/60 = 99/56
In mixed form: 143/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/56+90/60 45/56+90/60 75/56+90/60