Answers

Subtract 45/84 from 28/10

1^st number: 2 8/10, 2^nd number: 45/84

28/10 - 45/84 is 317/140.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 10 × 42 = 420,
   28/10 = 28 × 42/10 × 42 = 1176/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   45/84 = 45 × 5/84 × 5 = 225/420
4. Subtract the two like fractions:
   1176/420 - 225/420 = 1176 - 225/420 = 951/420
5. After reducing the fraction, the answer is 317/140
6. In mixed form: 237/140

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