Add 16/7 and 30/40
1st number: 2 2/7, 2nd number: 30/40
16/7 + 30/40 is 85/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
16/7 = 16 × 40/7 × 40 = 640/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
30/40 = 30 × 7/40 × 7 = 210/280 - Add the two like fractions:
640/280 + 210/280 = 640 + 210/280 = 850/280 - 850/280 simplified gives 85/28
- So, 16/7 + 30/40 = 85/28
In mixed form: 31/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/7+30/40 16/7+60/40 16/14+30/40 16/7+30/80 48/7+30/40 16/7+90/40 16/21+30/40 80/7+30/40 16/35+30/40 16/49+30/40