Add 8/20 and 14/45
8/20 + 14/45 is 32/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
8/20 = 8 × 9/20 × 9 = 72/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
14/45 = 14 × 4/45 × 4 = 56/180 - Add the two like fractions:
72/180 + 56/180 = 72 + 56/180 = 128/180 - 128/180 simplified gives 32/45
- So, 8/20 + 14/45 = 32/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/20+14/45 8/20+28/45 8/40+14/45 8/20+14/90 24/20+14/45 8/20+42/45 8/60+14/45 40/20+14/45 8/20+70/45 56/20+14/45 8/20+98/45