Add 42/54 and 4/30
42/54 + 4/30 is 41/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 30 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
42/54 = 42 × 5/54 × 5 = 210/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
4/30 = 4 × 9/30 × 9 = 36/270 - Add the two like fractions:
210/270 + 36/270 = 210 + 36/270 = 246/270 - 246/270 simplified gives 41/45
- So, 42/54 + 4/30 = 41/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/54+4/30 42/54+8/30 42/54+4/60 42/54+12/30 42/54+4/90 42/54+20/30 42/54+28/30