Subtract 30/54 from 84/70
1st number: 1 14/70, 2nd number: 30/54
84/70 - 30/54 is 29/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 54 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 70 × 27 = 1890,
84/70 = 84 × 27/70 × 27 = 2268/1890 - Likewise, for the 2nd fraction, since 54 × 35 = 1890,
30/54 = 30 × 35/54 × 35 = 1050/1890 - Subtract the two like fractions:
2268/1890 - 1050/1890 = 2268 - 1050/1890 = 1218/1890 - After reducing the fraction, the answer is 29/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/70-60/54 84/70-90/54