Add 21/30 and 56/4
1st number: 21/30, 2nd number: 14 0/4
21/30 + 56/4 is 147/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 4 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
21/30 = 21 × 2/30 × 2 = 42/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
56/4 = 56 × 15/4 × 15 = 840/60 - Add the two like fractions:
42/60 + 840/60 = 42 + 840/60 = 882/60 - 882/60 simplified gives 147/10
- So, 21/30 + 56/4 = 147/10
In mixed form: 147/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/30+56/4 21/60+56/4 21/30+56/8 63/30+56/4 21/90+56/4 21/30+56/12 21/30+56/20 21/30+56/28