Add 30/80 and 45/63
30/80 + 45/63 is 61/56.
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,
30/80 = 30 × 63/80 × 63 = 1890/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
45/63 = 45 × 80/63 × 80 = 3600/5040 - Add the two like fractions:
1890/5040 + 3600/5040 = 1890 + 3600/5040 = 5490/5040 - 5490/5040 simplified gives 61/56
- So, 30/80 + 45/63 = 61/56
In mixed form: 15/56
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