Solutions by everydaycalculation.com

1^{st} number: 4/18, 2^{nd} number: 1 23/40

418 - 6340 is -487360.

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

LCM of 18 and 40 is**360**

Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 18 × 20 = 360,

418 = 4 × 2018 × 20 = 80360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,

6340 = 63 × 940 × 9 = 567360 - Subtract the two like fractions:

80360 - 567360 = 80 - 567360 = -487360

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