Add 50/21 and 80/15
1st number: 2 8/21, 2nd number: 5 5/15
50/21 + 80/15 is 54/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 15 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
50/21 = 50 × 5/21 × 5 = 250/105 - Likewise, for the 2nd fraction, since 15 × 7 = 105,
80/15 = 80 × 7/15 × 7 = 560/105 - Add the two like fractions:
250/105 + 560/105 = 250 + 560/105 = 810/105 - 810/105 simplified gives 54/7
- So, 50/21 + 80/15 = 54/7
In mixed form: 75/7
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