Add 81/80 and 70/15
1st number: 1 1/80, 2nd number: 4 10/15
81/80 + 70/15 is 1363/240.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 15 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
81/80 = 81 × 3/80 × 3 = 243/240 - Likewise, for the 2nd fraction, since 15 × 16 = 240,
70/15 = 70 × 16/15 × 16 = 1120/240 - Add the two like fractions:
243/240 + 1120/240 = 243 + 1120/240 = 1363/240 - So, 81/80 + 70/15 = 1363/240
In mixed form: 5163/240
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