Add 42/20 and 14/7
1st number: 2 2/20, 2nd number: 2 0/7
42/20 + 14/7 is 41/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 7 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
42/20 = 42 × 7/20 × 7 = 294/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
14/7 = 14 × 20/7 × 20 = 280/140 - Add the two like fractions:
294/140 + 280/140 = 294 + 280/140 = 574/140 - 574/140 simplified gives 41/10
- So, 42/20 + 14/7 = 41/10
In mixed form: 41/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20+14/7 42/20+28/7 42/40+14/7 42/20+42/7 42/60+14/7 42/20+14/21 42/20+70/7 42/20+14/35 42/20+98/7 42/20+14/49