Subtract 90/70 from 30/4
1st number: 7 2/4, 2nd number: 1 20/70
30/4 - 90/70 is 87/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
30/4 = 30 × 35/4 × 35 = 1050/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
90/70 = 90 × 2/70 × 2 = 180/140 - Subtract the two like fractions:
1050/140 - 180/140 = 1050 - 180/140 = 870/140 - After reducing the fraction, the answer is 87/14
- In mixed form: 63/14
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