Add 35/70 and 54/20
1st number: 35/70, 2nd number: 2 14/20
35/70 + 54/20 is 16/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
35/70 = 35 × 2/70 × 2 = 70/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
54/20 = 54 × 7/20 × 7 = 378/140 - Add the two like fractions:
70/140 + 378/140 = 70 + 378/140 = 448/140 - 448/140 simplified gives 16/5
- So, 35/70 + 54/20 = 16/5
In mixed form: 31/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 35/70+54/40 35/70+54/60