Add 72/63 and 30/80
1st number: 1 9/63, 2nd number: 30/80
72/63 + 30/80 is 85/56.
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,
72/63 = 72 × 80/63 × 80 = 5760/5040 - Likewise, for the 2nd fraction, since 80 × 63 = 5040,
30/80 = 30 × 63/80 × 63 = 1890/5040 - Add the two like fractions:
5760/5040 + 1890/5040 = 5760 + 1890/5040 = 7650/5040 - 7650/5040 simplified gives 85/56
- So, 72/63 + 30/80 = 85/56
In mixed form: 129/56
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