Add 72/80 and 28/63
72/80 + 28/63 is 121/90.
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,
72/80 = 72 × 63/80 × 63 = 4536/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
28/63 = 28 × 80/63 × 80 = 2240/5040 - Add the two like fractions:
4536/5040 + 2240/5040 = 4536 + 2240/5040 = 6776/5040 - 6776/5040 simplified gives 121/90
- So, 72/80 + 28/63 = 121/90
In mixed form: 131/90
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