Add 80/45 and 81/28
1st number: 1 35/45, 2nd number: 2 25/28
80/45 + 81/28 is 1177/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
80/45 = 80 × 28/45 × 28 = 2240/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
81/28 = 81 × 45/28 × 45 = 3645/1260 - Add the two like fractions:
2240/1260 + 3645/1260 = 2240 + 3645/1260 = 5885/1260 - 5885/1260 simplified gives 1177/252
- So, 80/45 + 81/28 = 1177/252
In mixed form: 4169/252
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