Subtract 25/21 from 9/30
1st number: 9/30, 2nd number: 1 4/21
9/30 - 25/21 is -187/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
9/30 = 9 × 7/30 × 7 = 63/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
25/21 = 25 × 10/21 × 10 = 250/210 - Subtract the two like fractions:
63/210 - 250/210 = 63 - 250/210 = -187/210
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