Add 90/56 and 54/90
1st number: 1 34/56, 2nd number: 54/90
90/56 + 54/90 is 309/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 90 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
90/56 = 90 × 45/56 × 45 = 4050/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
54/90 = 54 × 28/90 × 28 = 1512/2520 - Add the two like fractions:
4050/2520 + 1512/2520 = 4050 + 1512/2520 = 5562/2520 - 5562/2520 simplified gives 309/140
- So, 90/56 + 54/90 = 309/140
In mixed form: 229/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: