Add 42/49 and 63/72
42/49 + 63/72 is 97/56.
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,
63/72 = 63 × 49/72 × 49 = 3087/3528 - Add the two like fractions:
3024/3528 + 3087/3528 = 3024 + 3087/3528 = 6111/3528 - 6111/3528 simplified gives 97/56
- So, 42/49 + 63/72 = 97/56
In mixed form: 141/56
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