Add 72/6 and 20/45
1st number: 12 0/6, 2nd number: 20/45
72/6 + 20/45 is 112/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
72/6 = 72 × 15/6 × 15 = 1080/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
20/45 = 20 × 2/45 × 2 = 40/90 - Add the two like fractions:
1080/90 + 40/90 = 1080 + 40/90 = 1120/90 - 1120/90 simplified gives 112/9
- So, 72/6 + 20/45 = 112/9
In mixed form: 124/9
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