Add 42/49 and 45/72
42/49 + 45/72 is 83/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 72 is 3528
Next, find the equivalent fraction of both fractional numbers with denominator 3528 - For the 1st fraction, since 49 × 72 = 3528,
42/49 = 42 × 72/49 × 72 = 3024/3528 - Likewise, for the 2nd fraction, since 72 × 49 = 3528,
45/72 = 45 × 49/72 × 49 = 2205/3528 - Add the two like fractions:
3024/3528 + 2205/3528 = 3024 + 2205/3528 = 5229/3528 - 5229/3528 simplified gives 83/56
- So, 42/49 + 45/72 = 83/56
In mixed form: 127/56
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