Add 3/30 and 1/40
3/30 + 1/40 is 1/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
3/30 = 3 × 4/30 × 4 = 12/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
1/40 = 1 × 3/40 × 3 = 3/120 - Add the two like fractions:
12/120 + 3/120 = 12 + 3/120 = 15/120 - 15/120 simplified gives 1/8
- So, 3/30 + 1/40 = 1/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/30+1/40 3/30+2/40 3/60+1/40 3/30+1/80 9/30+1/40 3/30+3/40 3/90+1/40 15/30+1/40 3/30+5/40 21/30+1/40 3/30+7/40