Answers

Subtract 9/20 from 72/35

1^st number: 2 2/35, 2^nd number: 9/20

72/35 - 9/20 is 45/28.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 20 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 35 × 4 = 140,
   72/35 = 72 × 4/35 × 4 = 288/140
3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
   9/20 = 9 × 7/20 × 7 = 63/140
4. Subtract the two like fractions:
   288/140 - 63/140 = 288 - 63/140 = 225/140
5. After reducing the fraction, the answer is 45/28
6. In mixed form: 117/28

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