Add 84/90 and 15/72
84/90 + 15/72 is 137/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
84/90 = 84 × 4/90 × 4 = 336/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
15/72 = 15 × 5/72 × 5 = 75/360 - Add the two like fractions:
336/360 + 75/360 = 336 + 75/360 = 411/360 - 411/360 simplified gives 137/120
- So, 84/90 + 15/72 = 137/120
In mixed form: 117/120
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