Add 70/12 and 81/80
1st number: 5 10/12, 2nd number: 1 1/80
70/12 + 81/80 is 1643/240.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 12 × 20 = 240,
70/12 = 70 × 20/12 × 20 = 1400/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
81/80 = 81 × 3/80 × 3 = 243/240 - Add the two like fractions:
1400/240 + 243/240 = 1400 + 243/240 = 1643/240 - So, 70/12 + 81/80 = 1643/240
In mixed form: 6203/240
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