Add 28/72 and 42/63
28/72 + 42/63 is 19/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
28/72 = 28 × 7/72 × 7 = 196/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
42/63 = 42 × 8/63 × 8 = 336/504 - Add the two like fractions:
196/504 + 336/504 = 196 + 336/504 = 532/504 - 532/504 simplified gives 19/18
- So, 28/72 + 42/63 = 19/18
In mixed form: 11/18
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