Subtract 30/63 from 70/27
1st number: 2 16/27, 2nd number: 30/63
70/27 - 30/63 is 400/189.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 63 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
70/27 = 70 × 7/27 × 7 = 490/189 - Likewise, for the 2nd fraction, since 63 × 3 = 189,
30/63 = 30 × 3/63 × 3 = 90/189 - Subtract the two like fractions:
490/189 - 90/189 = 490 - 90/189 = 400/189 - In mixed form: 222/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/27-60/63 70/54-30/63 70/27-90/63 70/81-30/63