Add 30/8 and 8/40
1st number: 3 6/8, 2nd number: 8/40
30/8 + 8/40 is 79/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
30/8 = 30 × 5/8 × 5 = 150/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
8/40 = 8 × 1/40 × 1 = 8/40 - Add the two like fractions:
150/40 + 8/40 = 150 + 8/40 = 158/40 - 158/40 simplified gives 79/20
- So, 30/8 + 8/40 = 79/20
In mixed form: 319/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8+8/40 30/8+16/40 30/16+8/40 30/8+8/80 90/8+8/40 30/8+24/40 30/24+8/40 30/40+8/40 30/8+56/40 30/56+8/40