Add 75/40 and 28/70
1st number: 1 35/40, 2nd number: 28/70
75/40 + 28/70 is 91/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
75/40 = 75 × 7/40 × 7 = 525/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
28/70 = 28 × 4/70 × 4 = 112/280 - Add the two like fractions:
525/280 + 112/280 = 525 + 112/280 = 637/280 - 637/280 simplified gives 91/40
- So, 75/40 + 28/70 = 91/40
In mixed form: 211/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/40+56/70 75/80+28/70 75/40+84/70