Add 7/45 and 42/80
7/45 + 42/80 is 49/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
7/45 = 7 × 16/45 × 16 = 112/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
42/80 = 42 × 9/80 × 9 = 378/720 - Add the two like fractions:
112/720 + 378/720 = 112 + 378/720 = 490/720 - 490/720 simplified gives 49/72
- So, 7/45 + 42/80 = 49/72
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