Add 70/45 and 81/54
1st number: 1 25/45, 2nd number: 1 27/54
70/45 + 81/54 is 55/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 45 × 6 = 270,
70/45 = 70 × 6/45 × 6 = 420/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
81/54 = 81 × 5/54 × 5 = 405/270 - Add the two like fractions:
420/270 + 405/270 = 420 + 405/270 = 825/270 - 825/270 simplified gives 55/18
- So, 70/45 + 81/54 = 55/18
In mixed form: 31/18
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