Add 45/72 and 48/80
45/72 + 48/80 is 49/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 72 × 10 = 720,
45/72 = 45 × 10/72 × 10 = 450/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
48/80 = 48 × 9/80 × 9 = 432/720 - Add the two like fractions:
450/720 + 432/720 = 450 + 432/720 = 882/720 - 882/720 simplified gives 49/40
- So, 45/72 + 48/80 = 49/40
In mixed form: 19/40
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