Answers

Subtract 15/20 from 25/7

1^st number: 3 4/7, 2^nd number: 15/20

25/7 - 15/20 is 79/28.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 20 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 7 × 20 = 140,
   25/7 = 25 × 20/7 × 20 = 500/140
3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
   15/20 = 15 × 7/20 × 7 = 105/140
4. Subtract the two like fractions:
   500/140 - 105/140 = 500 - 105/140 = 395/140
5. After reducing the fraction, the answer is 79/28
6. In mixed form: 223/28

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