Solutions by everydaycalculation.com

1^{st} number: 10/30, 2^{nd} number: 1 20/70

1030 - 9070 is -2021.

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

LCM of 30 and 70 is**210**

Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,

1030 = 10 × 730 × 7 = 70210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,

9070 = 90 × 370 × 3 = 270210 - Subtract the two like fractions:

70210 - 270210 = 70 - 270210 = -200210 - After reducing the fraction, the answer is -2021

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