Add 54/7 and 90/30
1st number: 7 5/7, 2nd number: 3 0/30
54/7 + 90/30 is 75/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 7 × 30 = 210,
54/7 = 54 × 30/7 × 30 = 1620/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
90/30 = 90 × 7/30 × 7 = 630/210 - Add the two like fractions:
1620/210 + 630/210 = 1620 + 630/210 = 2250/210 - 2250/210 simplified gives 75/7
- So, 54/7 + 90/30 = 75/7
In mixed form: 105/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/14+90/30 54/7+90/60 54/21+90/30 54/35+90/30 54/49+90/30