Add 45/75 and 20/7
1st number: 45/75, 2nd number: 2 6/7
45/75 + 20/7 is 121/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 7 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 75 × 7 = 525,
45/75 = 45 × 7/75 × 7 = 315/525 - Likewise, for the 2nd fraction, since 7 × 75 = 525,
20/7 = 20 × 75/7 × 75 = 1500/525 - Add the two like fractions:
315/525 + 1500/525 = 315 + 1500/525 = 1815/525 - 1815/525 simplified gives 121/35
- So, 45/75 + 20/7 = 121/35
In mixed form: 316/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/75+20/7 45/75+40/7 45/75+20/14 45/75+60/7 45/75+20/21 45/75+20/35 45/75+20/49