Add 90/80 and 80/63
1st number: 1 10/80, 2nd number: 1 17/63
90/80 + 80/63 is 1207/504.
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,
90/80 = 90 × 63/80 × 63 = 5670/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
80/63 = 80 × 80/63 × 80 = 6400/5040 - Add the two like fractions:
5670/5040 + 6400/5040 = 5670 + 6400/5040 = 12070/5040 - 12070/5040 simplified gives 1207/504
- So, 90/80 + 80/63 = 1207/504
In mixed form: 2199/504
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