Add 12/70 and 75/40
1st number: 12/70, 2nd number: 1 35/40
12/70 + 75/40 is 573/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
12/70 = 12 × 4/70 × 4 = 48/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
75/40 = 75 × 7/40 × 7 = 525/280 - Add the two like fractions:
48/280 + 525/280 = 48 + 525/280 = 573/280 - So, 12/70 + 75/40 = 573/280
In mixed form: 213/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/70+75/40 12/70+75/80 36/70+75/40 60/70+75/40 84/70+75/40