Answers

Subtract 15/50 from 90/40

1^st number: 2 10/40, 2^nd number: 15/50

90/40 - 15/50 is 39/20.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 50 is 200
   
   Next, find the equivalent fraction of both fractional numbers with denominator 200
2. For the 1st fraction, since 40 × 5 = 200,
   90/40 = 90 × 5/40 × 5 = 450/200
3. Likewise, for the 2nd fraction, since 50 × 4 = 200,
   15/50 = 15 × 4/50 × 4 = 60/200
4. Subtract the two like fractions:
   450/200 - 60/200 = 450 - 60/200 = 390/200
5. After reducing the fraction, the answer is 39/20
6. In mixed form: 119/20

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