Solutions by everydaycalculation.com

1^{st} number: 1 28/42, 2^{nd} number: 1 5/20

7042 - 2520 is 512.

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

LCM of 42 and 20 is**420**

Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,

7042 = 70 × 1042 × 10 = 700420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,

2520 = 25 × 2120 × 21 = 525420 - Subtract the two like fractions:

700420 - 525420 = 700 - 525420 = 175420 - After reducing the fraction, the answer is 512

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