Add 42/7 and 90/72
1st number: 6 0/7, 2nd number: 1 18/72
42/7 + 90/72 is 29/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 7 × 72 = 504,
42/7 = 42 × 72/7 × 72 = 3024/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
90/72 = 90 × 7/72 × 7 = 630/504 - Add the two like fractions:
3024/504 + 630/504 = 3024 + 630/504 = 3654/504 - 3654/504 simplified gives 29/4
- So, 42/7 + 90/72 = 29/4
In mixed form: 71/4
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