Add 42/40 and 1/70
1st number: 1 2/40, 2nd number: 1/70
42/40 + 1/70 is 149/140.
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,
42/40 = 42 × 7/40 × 7 = 294/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
1/70 = 1 × 4/70 × 4 = 4/280 - Add the two like fractions:
294/280 + 4/280 = 294 + 4/280 = 298/280 - 298/280 simplified gives 149/140
- So, 42/40 + 1/70 = 149/140
In mixed form: 19/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/40+1/70 42/40+2/70 42/80+1/70 42/40+3/70 42/40+5/70 42/40+7/70