Add 7/30 and 15/54
7/30 + 15/54 is 23/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
7/30 = 7 × 9/30 × 9 = 63/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
15/54 = 15 × 5/54 × 5 = 75/270 - Add the two like fractions:
63/270 + 75/270 = 63 + 75/270 = 138/270 - 138/270 simplified gives 23/45
- So, 7/30 + 15/54 = 23/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/30+15/54 7/30+30/54 7/60+15/54 21/30+15/54 7/30+45/54 7/90+15/54 35/30+15/54 7/30+75/54 49/30+15/54