Add 45/70 and 80/60
1st number: 45/70, 2nd number: 1 20/60
45/70 + 80/60 is 83/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
45/70 = 45 × 6/70 × 6 = 270/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
80/60 = 80 × 7/60 × 7 = 560/420 - Add the two like fractions:
270/420 + 560/420 = 270 + 560/420 = 830/420 - 830/420 simplified gives 83/42
- So, 45/70 + 80/60 = 83/42
In mixed form: 141/42
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