Add 28/30 and 42/72
28/30 + 42/72 is 91/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 30 × 12 = 360,
28/30 = 28 × 12/30 × 12 = 336/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
42/72 = 42 × 5/72 × 5 = 210/360 - Add the two like fractions:
336/360 + 210/360 = 336 + 210/360 = 546/360 - 546/360 simplified gives 91/60
- So, 28/30 + 42/72 = 91/60
In mixed form: 131/60
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