Answers

Subtract 3/40 from 90/14

1^st number: 6 6/14, 2^nd number: 3/40

90/14 - 3/40 is 1779/280.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 40 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 14 × 20 = 280,
   90/14 = 90 × 20/14 × 20 = 1800/280
3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
   3/40 = 3 × 7/40 × 7 = 21/280
4. Subtract the two like fractions:
   1800/280 - 21/280 = 1800 - 21/280 = 1779/280
5. In mixed form: 699/280

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