Add 90/25 and 42/72
1st number: 3 15/25, 2nd number: 42/72
90/25 + 42/72 is 251/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 72 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 25 × 72 = 1800,
90/25 = 90 × 72/25 × 72 = 6480/1800 - Likewise, for the 2nd fraction, since 72 × 25 = 1800,
42/72 = 42 × 25/72 × 25 = 1050/1800 - Add the two like fractions:
6480/1800 + 1050/1800 = 6480 + 1050/1800 = 7530/1800 - 7530/1800 simplified gives 251/60
- So, 90/25 + 42/72 = 251/60
In mixed form: 411/60
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