Add 4/10 and 30/8
1st number: 4/10, 2nd number: 3 6/8
4/10 + 30/8 is 83/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
4/10 = 4 × 4/10 × 4 = 16/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
30/8 = 30 × 5/8 × 5 = 150/40 - Add the two like fractions:
16/40 + 150/40 = 16 + 150/40 = 166/40 - 166/40 simplified gives 83/20
- So, 4/10 + 30/8 = 83/20
In mixed form: 43/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/10+30/8 4/10+60/8 4/20+30/8 4/10+30/16 12/10+30/8 4/10+90/8 4/30+30/8 4/10+30/24 20/10+30/8 4/50+30/8 4/10+30/40 28/10+30/8 4/70+30/8 4/10+30/56