Add 45/70 and 2/20
45/70 + 2/20 is 26/35.
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,
45/70 = 45 × 2/70 × 2 = 90/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
2/20 = 2 × 7/20 × 7 = 14/140 - Add the two like fractions:
90/140 + 14/140 = 90 + 14/140 = 104/140 - 104/140 simplified gives 26/35
- So, 45/70 + 2/20 = 26/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70+2/20 45/70+4/20 45/70+2/40 45/70+6/20 45/70+2/60 45/70+10/20 45/70+14/20