Add 75/40 and 72/70
1st number: 1 35/40, 2nd number: 1 2/70
75/40 + 72/70 is 813/280.
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,
72/70 = 72 × 4/70 × 4 = 288/280 - Add the two like fractions:
525/280 + 288/280 = 525 + 288/280 = 813/280 - So, 75/40 + 72/70 = 813/280
In mixed form: 2253/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/80+72/70