Add 4/20 and 72/35
1st number: 4/20, 2nd number: 2 2/35
4/20 + 72/35 is 79/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
4/20 = 4 × 7/20 × 7 = 28/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
72/35 = 72 × 4/35 × 4 = 288/140 - Add the two like fractions:
28/140 + 288/140 = 28 + 288/140 = 316/140 - 316/140 simplified gives 79/35
- So, 4/20 + 72/35 = 79/35
In mixed form: 29/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/20+72/35 4/40+72/35 4/20+72/70 12/20+72/35 4/60+72/35 28/20+72/35