Add 81/4 and 5/70
1st number: 20 1/4, 2nd number: 5/70
81/4 + 5/70 is 569/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
81/4 = 81 × 35/4 × 35 = 2835/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
5/70 = 5 × 2/70 × 2 = 10/140 - Add the two like fractions:
2835/140 + 10/140 = 2835 + 10/140 = 2845/140 - 2845/140 simplified gives 569/28
- So, 81/4 + 5/70 = 569/28
In mixed form: 209/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/4+10/70 81/8+5/70 81/4+15/70 81/12+5/70 81/4+25/70 81/20+5/70 81/4+35/70 81/28+5/70