Add 1/30 and 21/56
1/30 + 21/56 is 49/120.
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,
21/56 = 21 × 15/56 × 15 = 315/840 - Add the two like fractions:
28/840 + 315/840 = 28 + 315/840 = 343/840 - 343/840 simplified gives 49/120
- So, 1/30 + 21/56 = 49/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/30+21/56 1/30+42/56 1/60+21/56 3/30+21/56 1/30+63/56 1/90+21/56 5/30+21/56 7/30+21/56