Answers

Subtract 40/56 from 90/45

1^st number: 2 0/45, 2^nd number: 40/56

90/45 - 40/56 is 9/7.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 56 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 45 × 56 = 2520,
   90/45 = 90 × 56/45 × 56 = 5040/2520
3. Likewise, for the 2nd fraction, since 56 × 45 = 2520,
   40/56 = 40 × 45/56 × 45 = 1800/2520
4. Subtract the two like fractions:
   5040/2520 - 1800/2520 = 5040 - 1800/2520 = 3240/2520
5. After reducing the fraction, the answer is 9/7
6. In mixed form: 12/7

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