Add 81/63 and 70/80
1st number: 1 18/63, 2nd number: 70/80
81/63 + 70/80 is 121/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 80 is 5040
Next, find the equivalent fraction of both fractional numbers with denominator 5040 - For the 1st fraction, since 63 × 80 = 5040,
81/63 = 81 × 80/63 × 80 = 6480/5040 - Likewise, for the 2nd fraction, since 80 × 63 = 5040,
70/80 = 70 × 63/80 × 63 = 4410/5040 - Add the two like fractions:
6480/5040 + 4410/5040 = 6480 + 4410/5040 = 10890/5040 - 10890/5040 simplified gives 121/56
- So, 81/63 + 70/80 = 121/56
In mixed form: 29/56
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