Add 20/80 and 90/63
1st number: 20/80, 2nd number: 1 27/63
20/80 + 90/63 is 47/28.
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,
20/80 = 20 × 63/80 × 63 = 1260/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
90/63 = 90 × 80/63 × 80 = 7200/5040 - Add the two like fractions:
1260/5040 + 7200/5040 = 1260 + 7200/5040 = 8460/5040 - 8460/5040 simplified gives 47/28
- So, 20/80 + 90/63 = 47/28
In mixed form: 119/28
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