Add 30/28 and 42/72
1st number: 1 2/28, 2nd number: 42/72
30/28 + 42/72 is 139/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 28 × 18 = 504,
30/28 = 30 × 18/28 × 18 = 540/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
42/72 = 42 × 7/72 × 7 = 294/504 - Add the two like fractions:
540/504 + 294/504 = 540 + 294/504 = 834/504 - 834/504 simplified gives 139/84
- So, 30/28 + 42/72 = 139/84
In mixed form: 155/84
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