Add 40/35 and 81/40
1st number: 1 5/35, 2nd number: 2 1/40
40/35 + 81/40 is 887/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
40/35 = 40 × 8/35 × 8 = 320/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
81/40 = 81 × 7/40 × 7 = 567/280 - Add the two like fractions:
320/280 + 567/280 = 320 + 567/280 = 887/280 - So, 40/35 + 81/40 = 887/280
In mixed form: 347/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/35+81/40 40/70+81/40 40/35+81/80