Answers

Subtract 9/40 from 30/10

1^st number: 3 0/10, 2^nd number: 9/40

30/10 - 9/40 is 111/40.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 40 is 40
   
   Next, find the equivalent fraction of both fractional numbers with denominator 40
2. For the 1st fraction, since 10 × 4 = 40,
   30/10 = 30 × 4/10 × 4 = 120/40
3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
   9/40 = 9 × 1/40 × 1 = 9/40
4. Subtract the two like fractions:
   120/40 - 9/40 = 120 - 9/40 = 111/40
5. In mixed form: 231/40

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