Add 42/40 and 27/35
1st number: 1 2/40, 2nd number: 27/35
42/40 + 27/35 is 51/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 35 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
42/40 = 42 × 7/40 × 7 = 294/280 - Likewise, for the 2nd fraction, since 35 × 8 = 280,
27/35 = 27 × 8/35 × 8 = 216/280 - Add the two like fractions:
294/280 + 216/280 = 294 + 216/280 = 510/280 - 510/280 simplified gives 51/28
- So, 42/40 + 27/35 = 51/28
In mixed form: 123/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/40+27/35 42/40+54/35 42/80+27/35 42/40+27/70 42/40+81/35