Add 3/10 and 81/56
1st number: 3/10, 2nd number: 1 25/56
3/10 + 81/56 is 489/280.
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,
3/10 = 3 × 28/10 × 28 = 84/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
81/56 = 81 × 5/56 × 5 = 405/280 - Add the two like fractions:
84/280 + 405/280 = 84 + 405/280 = 489/280 - So, 3/10 + 81/56 = 489/280
In mixed form: 1209/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/10+81/56 3/20+81/56 9/10+81/56 3/30+81/56 15/10+81/56 3/50+81/56 21/10+81/56 3/70+81/56