Add 7/80 and 8/45
7/80 + 8/45 is 191/720.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
7/80 = 7 × 9/80 × 9 = 63/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
8/45 = 8 × 16/45 × 16 = 128/720 - Add the two like fractions:
63/720 + 128/720 = 63 + 128/720 = 191/720 - So, 7/80 + 8/45 = 191/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/80+8/45 7/80+16/45 7/80+8/90 21/80+8/45 7/80+24/45 35/80+8/45 7/80+40/45 49/80+8/45 7/80+56/45