Answers

Subtract 7/90 from 54/40

1^st number: 1 14/40, 2^nd number: 7/90

54/40 - 7/90 is 229/180.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 90 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 40 × 9 = 360,
   54/40 = 54 × 9/40 × 9 = 486/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   7/90 = 7 × 4/90 × 4 = 28/360
4. Subtract the two like fractions:
   486/360 - 28/360 = 486 - 28/360 = 458/360
5. After reducing the fraction, the answer is 229/180
6. In mixed form: 149/180

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