Solutions by everydaycalculation.com

1^{st} number: 1 10/20, 2^{nd} number: 45/70

3020 - 4570 is 67.

- Find the least common denominator or LCM of the two denominators:

LCM of 20 and 70 is**140**

Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,

3020 = 30 × 720 × 7 = 210140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,

4570 = 45 × 270 × 2 = 90140 - Subtract the two like fractions:

210140 - 90140 = 210 - 90140 = 120140 - After reducing the fraction, the answer is 67

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