Add 1/30 and 81/56
1st number: 1/30, 2nd number: 1 25/56
1/30 + 81/56 is 1243/840.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 30 × 28 = 840,
1/30 = 1 × 28/30 × 28 = 28/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
81/56 = 81 × 15/56 × 15 = 1215/840 - Add the two like fractions:
28/840 + 1215/840 = 28 + 1215/840 = 1243/840 - So, 1/30 + 81/56 = 1243/840
In mixed form: 1403/840
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/30+81/56 1/60+81/56 3/30+81/56 1/90+81/56 5/30+81/56 7/30+81/56