Answers

Subtract 70/56 from 18/45

1^st number: 18/45, 2^nd number: 1 14/56

18/45 - 70/56 is -17/20.

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,
   18/45 = 18 × 56/45 × 56 = 1008/2520
3. Likewise, for the 2nd fraction, since 56 × 45 = 2520,
   70/56 = 70 × 45/56 × 45 = 3150/2520
4. Subtract the two like fractions:
   1008/2520 - 3150/2520 = 1008 - 3150/2520 = -2142/2520
5. After reducing the fraction, the answer is -17/20

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