Add 72/30 and 70/8
1st number: 2 12/30, 2nd number: 8 6/8
72/30 + 70/8 is 223/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
72/30 = 72 × 4/30 × 4 = 288/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
70/8 = 70 × 15/8 × 15 = 1050/120 - Add the two like fractions:
288/120 + 1050/120 = 288 + 1050/120 = 1338/120 - 1338/120 simplified gives 223/20
- So, 72/30 + 70/8 = 223/20
In mixed form: 113/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/60+70/8 72/30+70/16 72/90+70/8 72/30+70/24 72/30+70/40 72/30+70/56