Answers

Subtract 40/9 from 7/90

1^st number: 7/90, 2^nd number: 4 4/9

7/90 - 40/9 is -131/30.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 9 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 90 × 1 = 90,
   7/90 = 7 × 1/90 × 1 = 7/90
3. Likewise, for the 2nd fraction, since 9 × 10 = 90,
   40/9 = 40 × 10/9 × 10 = 400/90
4. Subtract the two like fractions:
   7/90 - 400/90 = 7 - 400/90 = -393/90
5. After reducing the fraction, the answer is -131/30

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