Add 80/72 and 12/45
1st number: 1 8/72, 2nd number: 12/45
80/72 + 12/45 is 62/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
80/72 = 80 × 5/72 × 5 = 400/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
12/45 = 12 × 8/45 × 8 = 96/360 - Add the two like fractions:
400/360 + 96/360 = 400 + 96/360 = 496/360 - 496/360 simplified gives 62/45
- So, 80/72 + 12/45 = 62/45
In mixed form: 117/45
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