Subtract 84/30 from 70/80
1st number: 70/80, 2nd number: 2 24/30
70/80 - 84/30 is -77/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
70/80 = 70 × 3/80 × 3 = 210/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
84/30 = 84 × 8/30 × 8 = 672/240 - Subtract the two like fractions:
210/240 - 672/240 = 210 - 672/240 = -462/240 - After reducing the fraction, the answer is -77/40
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