Add 60/40 and 42/35
1st number: 1 20/40, 2nd number: 1 7/35
60/40 + 42/35 is 27/10.
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,
60/40 = 60 × 7/40 × 7 = 420/280 - Likewise, for the 2nd fraction, since 35 × 8 = 280,
42/35 = 42 × 8/35 × 8 = 336/280 - Add the two like fractions:
420/280 + 336/280 = 420 + 336/280 = 756/280 - 756/280 simplified gives 27/10
- So, 60/40 + 42/35 = 27/10
In mixed form: 27/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/40+84/35 60/80+42/35 60/40+42/70