Add 15/90 and 7/72
15/90 + 7/72 is 19/72.
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,
15/90 = 15 × 4/90 × 4 = 60/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
7/72 = 7 × 5/72 × 5 = 35/360 - Add the two like fractions:
60/360 + 35/360 = 60 + 35/360 = 95/360 - 95/360 simplified gives 19/72
- So, 15/90 + 7/72 = 19/72
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