8 - 7 = 2
8 9 9
Step-by-step explanation:
Solution with Steps
8 - 7 = ?
8 9
The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.
LCD(8/8, 7/9) = 72
Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.
( 8 × 9 ) - ( 7 × 8 ) = ?
( 8 9 ) ( 9 8 )
Complete the multiplication and the equation becomes
72 - 56 = ?
72 72
The two fractions now have like denominators so you can subtract the numerators.
Then:
72 – 56 = 16
72 72
This fraction can be reduced by dividing both the numerator and denominator by the Greatest Common Factor of 16 and 72 using
GCF(16,72) = 8
16 ÷ 8 = 2
72 ÷ 8 9
Therefore:
8 - 7 = 2
8 9 9
Hope It's Help
Correct Me If I'm Wrong
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