Add 72/70 and 40/56
1st number: 1 2/70, 2nd number: 40/56
72/70 + 40/56 is 61/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
72/70 = 72 × 4/70 × 4 = 288/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
40/56 = 40 × 5/56 × 5 = 200/280 - Add the two like fractions:
288/280 + 200/280 = 288 + 200/280 = 488/280 - 488/280 simplified gives 61/35
- So, 72/70 + 40/56 = 61/35
In mixed form: 126/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/70+80/56