Add 8/56 and 90/45
1st number: 8/56, 2nd number: 2 0/45
8/56 + 90/45 is 15/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 45 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
8/56 = 8 × 45/56 × 45 = 360/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
90/45 = 90 × 56/45 × 56 = 5040/2520 - Add the two like fractions:
360/2520 + 5040/2520 = 360 + 5040/2520 = 5400/2520 - 5400/2520 simplified gives 15/7
- So, 8/56 + 90/45 = 15/7
In mixed form: 21/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/56+90/45 24/56+90/45 40/56+90/45