Add 80/60 and 70/42
1st number: 1 20/60, 2nd number: 1 28/42
80/60 + 70/42 is 3/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
80/60 = 80 × 7/60 × 7 = 560/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
70/42 = 70 × 10/42 × 10 = 700/420 - Add the two like fractions:
560/420 + 700/420 = 560 + 700/420 = 1260/420 - 1260/420 simplified gives 3/1
- So, 80/60 + 70/42 = 3/1
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