Add 70/75 and 45/28
1st number: 70/75, 2nd number: 1 17/28
70/75 + 45/28 is 1067/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 28 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 75 × 28 = 2100,
70/75 = 70 × 28/75 × 28 = 1960/2100 - Likewise, for the 2nd fraction, since 28 × 75 = 2100,
45/28 = 45 × 75/28 × 75 = 3375/2100 - Add the two like fractions:
1960/2100 + 3375/2100 = 1960 + 3375/2100 = 5335/2100 - 5335/2100 simplified gives 1067/420
- So, 70/75 + 45/28 = 1067/420
In mixed form: 2227/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/75+90/28 70/75+45/56 70/75+45/84