Add 7/56 and 20/45
7/56 + 20/45 is 41/72.
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,
7/56 = 7 × 45/56 × 45 = 315/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
20/45 = 20 × 56/45 × 56 = 1120/2520 - Add the two like fractions:
315/2520 + 1120/2520 = 315 + 1120/2520 = 1435/2520 - 1435/2520 simplified gives 41/72
- So, 7/56 + 20/45 = 41/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/56+20/45 7/56+40/45 7/56+20/90 21/56+20/45 7/56+60/45 35/56+20/45 49/56+20/45