Add 42/80 and 42/63
42/80 + 42/63 is 143/120.
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,
42/80 = 42 × 63/80 × 63 = 2646/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
42/63 = 42 × 80/63 × 80 = 3360/5040 - Add the two like fractions:
2646/5040 + 3360/5040 = 2646 + 3360/5040 = 6006/5040 - 6006/5040 simplified gives 143/120
- So, 42/80 + 42/63 = 143/120
In mixed form: 123/120
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