Add 42/10 and 15/56
1st number: 4 2/10, 2nd number: 15/56
42/10 + 15/56 is 1251/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 10 × 28 = 280,
42/10 = 42 × 28/10 × 28 = 1176/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
15/56 = 15 × 5/56 × 5 = 75/280 - Add the two like fractions:
1176/280 + 75/280 = 1176 + 75/280 = 1251/280 - So, 42/10 + 15/56 = 1251/280
In mixed form: 4131/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10+15/56 42/10+30/56 42/20+15/56 42/10+45/56 42/30+15/56 42/10+75/56 42/50+15/56 42/70+15/56