Add 42/20 and 25/7
1st number: 2 2/20, 2nd number: 3 4/7
42/20 + 25/7 is 397/70.
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,
25/7 = 25 × 20/7 × 20 = 500/140 - Add the two like fractions:
294/140 + 500/140 = 294 + 500/140 = 794/140 - 794/140 simplified gives 397/70
- So, 42/20 + 25/7 = 397/70
In mixed form: 547/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20+25/7 42/20+50/7 42/40+25/7 42/20+25/14 42/20+75/7 42/60+25/7 42/20+25/21 42/20+25/35 42/20+25/49