Answers

Subtract 7/10 from 28/20

1^st number: 1 8/20, 2^nd number: 7/10

28/20 - 7/10 is 7/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 10 is 20
   
   Next, find the equivalent fraction of both fractional numbers with denominator 20
2. For the 1st fraction, since 20 × 1 = 20,
   28/20 = 28 × 1/20 × 1 = 28/20
3. Likewise, for the 2nd fraction, since 10 × 2 = 20,
   7/10 = 7 × 2/10 × 2 = 14/20
4. Subtract the two like fractions:
   28/20 - 14/20 = 28 - 14/20 = 14/20
5. After reducing the fraction, the answer is 7/10

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