Add 45/63 and 70/80
45/63 + 70/80 is 89/56.
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,
45/63 = 45 × 80/63 × 80 = 3600/5040 - Likewise, for the 2nd fraction, since 80 × 63 = 5040,
70/80 = 70 × 63/80 × 63 = 4410/5040 - Add the two like fractions:
3600/5040 + 4410/5040 = 3600 + 4410/5040 = 8010/5040 - 8010/5040 simplified gives 89/56
- So, 45/63 + 70/80 = 89/56
In mixed form: 133/56
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Related: 90/63+70/80