Add 81/35 and 4/20
1st number: 2 11/35, 2nd number: 4/20
81/35 + 4/20 is 88/35.
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,
81/35 = 81 × 4/35 × 4 = 324/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
4/20 = 4 × 7/20 × 7 = 28/140 - Add the two like fractions:
324/140 + 28/140 = 324 + 28/140 = 352/140 - 352/140 simplified gives 88/35
- So, 81/35 + 4/20 = 88/35
In mixed form: 218/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/35+8/20 81/70+4/20 81/35+4/40 81/35+12/20 81/35+4/60 81/35+28/20