Add 15/4 and 75/70
1st number: 3 3/4, 2nd number: 1 5/70
15/4 + 75/70 is 135/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
15/4 = 15 × 35/4 × 35 = 525/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
75/70 = 75 × 2/70 × 2 = 150/140 - Add the two like fractions:
525/140 + 150/140 = 525 + 150/140 = 675/140 - 675/140 simplified gives 135/28
- So, 15/4 + 75/70 = 135/28
In mixed form: 423/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/4+75/70 15/8+75/70 45/4+75/70 15/12+75/70 75/4+75/70 15/20+75/70 15/28+75/70