Add 45/35 and 75/20
1st number: 1 10/35, 2nd number: 3 15/20
45/35 + 75/20 is 141/28.
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,
45/35 = 45 × 4/35 × 4 = 180/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
75/20 = 75 × 7/20 × 7 = 525/140 - Add the two like fractions:
180/140 + 525/140 = 180 + 525/140 = 705/140 - 705/140 simplified gives 141/28
- So, 45/35 + 75/20 = 141/28
In mixed form: 51/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/35+75/20 45/70+75/20 45/35+75/40 45/35+75/60