Answers

Subtract 18/72 from 70/40

1^st number: 1 30/40, 2^nd number: 18/72

70/40 - 18/72 is 3/2.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 40 × 9 = 360,
   70/40 = 70 × 9/40 × 9 = 630/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   18/72 = 18 × 5/72 × 5 = 90/360
4. Subtract the two like fractions:
   630/360 - 90/360 = 630 - 90/360 = 540/360
5. After reducing the fraction, the answer is 3/2
6. In mixed form: 11/2

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