Add 9/45 and 70/80
9/45 + 70/80 is 43/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
9/45 = 9 × 16/45 × 16 = 144/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
70/80 = 70 × 9/80 × 9 = 630/720 - Add the two like fractions:
144/720 + 630/720 = 144 + 630/720 = 774/720 - 774/720 simplified gives 43/40
- So, 9/45 + 70/80 = 43/40
In mixed form: 13/40
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