Answers

Subtract 9/28 from 72/70

1^st number: 1 2/70, 2^nd number: 9/28

72/70 - 9/28 is 99/140.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 28 is 140
2. For the 1st fraction, since 70 × 2 = 140,
   72/70 = 72 × 2/70 × 2 = 144/140
3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
   9/28 = 9 × 5/28 × 5 = 45/140
4. Subtract the two fractions:
   144/140 - 45/140 = 144 - 45/140 = 99/140

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