Add 90/15 and 42/72
1st number: 6 0/15, 2nd number: 42/72
90/15 + 42/72 is 79/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 15 × 24 = 360,
90/15 = 90 × 24/15 × 24 = 2160/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
42/72 = 42 × 5/72 × 5 = 210/360 - Add the two like fractions:
2160/360 + 210/360 = 2160 + 210/360 = 2370/360 - 2370/360 simplified gives 79/12
- So, 90/15 + 42/72 = 79/12
In mixed form: 67/12
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