Add 8/20 and 30/64
8/20 + 30/64 is 139/160.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 64 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 20 × 16 = 320,
8/20 = 8 × 16/20 × 16 = 128/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
30/64 = 30 × 5/64 × 5 = 150/320 - Add the two like fractions:
128/320 + 150/320 = 128 + 150/320 = 278/320 - 278/320 simplified gives 139/160
- So, 8/20 + 30/64 = 139/160
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/20+30/64 8/20+60/64 8/40+30/64 24/20+30/64 8/20+90/64 8/60+30/64 40/20+30/64 56/20+30/64