Add 90/2 and 20/56
1st number: 45 0/2, 2nd number: 20/56
90/2 + 20/56 is 635/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 2 × 28 = 56,
90/2 = 90 × 28/2 × 28 = 2520/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
20/56 = 20 × 1/56 × 1 = 20/56 - Add the two like fractions:
2520/56 + 20/56 = 2520 + 20/56 = 2540/56 - 2540/56 simplified gives 635/14
- So, 90/2 + 20/56 = 635/14
In mixed form: 455/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2+40/56 90/4+20/56 90/2+60/56 90/6+20/56 90/10+20/56 90/14+20/56