Add 70/20 and 70/75
1st number: 3 10/20, 2nd number: 70/75
70/20 + 70/75 is 133/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 75 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 20 × 15 = 300,
70/20 = 70 × 15/20 × 15 = 1050/300 - Likewise, for the 2nd fraction, since 75 × 4 = 300,
70/75 = 70 × 4/75 × 4 = 280/300 - Add the two like fractions:
1050/300 + 280/300 = 1050 + 280/300 = 1330/300 - 1330/300 simplified gives 133/30
- So, 70/20 + 70/75 = 133/30
In mixed form: 413/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/40+70/75 70/60+70/75