Add 75/28 and 54/70
1st number: 2 19/28, 2nd number: 54/70
75/28 + 54/70 is 69/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
75/28 = 75 × 5/28 × 5 = 375/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
54/70 = 54 × 2/70 × 2 = 108/140 - Add the two like fractions:
375/140 + 108/140 = 375 + 108/140 = 483/140 - 483/140 simplified gives 69/20
- So, 75/28 + 54/70 = 69/20
In mixed form: 39/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/56+54/70 75/84+54/70