Add 42/35 and 36/20
1st number: 1 7/35, 2nd number: 1 16/20
42/35 + 36/20 is 3/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 35 × 4 = 140,
42/35 = 42 × 4/35 × 4 = 168/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
36/20 = 36 × 7/20 × 7 = 252/140 - Add the two like fractions:
168/140 + 252/140 = 168 + 252/140 = 420/140 - 420/140 simplified gives 3/1
- So, 42/35 + 36/20 = 3/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/35+36/20 42/35+72/20 42/70+36/20 42/35+36/40 42/35+36/60