Add 81/80 and 90/63
1st number: 1 1/80, 2nd number: 1 27/63
81/80 + 90/63 is 1367/560.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 63 is 5040
Next, find the equivalent fraction of both fractional numbers with denominator 5040 - For the 1st fraction, since 80 × 63 = 5040,
81/80 = 81 × 63/80 × 63 = 5103/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
90/63 = 90 × 80/63 × 80 = 7200/5040 - Add the two like fractions:
5103/5040 + 7200/5040 = 5103 + 7200/5040 = 12303/5040 - 12303/5040 simplified gives 1367/560
- So, 81/80 + 90/63 = 1367/560
In mixed form: 2247/560
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