Add 4/30 and 54/56
4/30 + 54/56 is 461/420.
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,
4/30 = 4 × 28/30 × 28 = 112/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
54/56 = 54 × 15/56 × 15 = 810/840 - Add the two like fractions:
112/840 + 810/840 = 112 + 810/840 = 922/840 - 922/840 simplified gives 461/420
- So, 4/30 + 54/56 = 461/420
In mixed form: 141/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/30+54/56 4/60+54/56 12/30+54/56 4/90+54/56 20/30+54/56 28/30+54/56