Add 3/30 and 70/40
1st number: 3/30, 2nd number: 1 30/40
3/30 + 70/40 is 37/20.
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,
70/40 = 70 × 3/40 × 3 = 210/120 - Add the two like fractions:
12/120 + 210/120 = 12 + 210/120 = 222/120 - 222/120 simplified gives 37/20
- So, 3/30 + 70/40 = 37/20
In mixed form: 117/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/30+70/40 3/60+70/40 3/30+70/80 9/30+70/40 3/90+70/40 15/30+70/40 21/30+70/40