Add 75/40 and 45/70
1st number: 1 35/40, 2nd number: 45/70
75/40 + 45/70 is 141/56.
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,
45/70 = 45 × 4/70 × 4 = 180/280 - Add the two like fractions:
525/280 + 180/280 = 525 + 180/280 = 705/280 - 705/280 simplified gives 141/56
- So, 75/40 + 45/70 = 141/56
In mixed form: 229/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/40+90/70 75/80+45/70