Answers

Subtract 30/45 from 40/28

1^st number: 1 12/28, 2^nd number: 30/45

40/28 - 30/45 is 16/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 45 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 28 × 45 = 1260,
   40/28 = 40 × 45/28 × 45 = 1800/1260
3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
   30/45 = 30 × 28/45 × 28 = 840/1260
4. Subtract the two like fractions:
   1800/1260 - 840/1260 = 1800 - 840/1260 = 960/1260
5. After reducing the fraction, the answer is 16/21

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