Subtract 18/35 from 21/4
1st number: 5 1/4, 2nd number: 18/35
21/4 - 18/35 is 663/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
21/4 = 21 × 35/4 × 35 = 735/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
18/35 = 18 × 4/35 × 4 = 72/140 - Subtract the two like fractions:
735/140 - 72/140 = 735 - 72/140 = 663/140 - In mixed form: 4103/140
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