Add 42/8 and 15/70
1st number: 5 2/8, 2nd number: 15/70
42/8 + 15/70 is 153/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
42/8 = 42 × 35/8 × 35 = 1470/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
15/70 = 15 × 4/70 × 4 = 60/280 - Add the two like fractions:
1470/280 + 60/280 = 1470 + 60/280 = 1530/280 - 1530/280 simplified gives 153/28
- So, 42/8 + 15/70 = 153/28
In mixed form: 513/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8+15/70 42/8+30/70 42/16+15/70 42/8+45/70 42/24+15/70 42/8+75/70 42/40+15/70 42/56+15/70