Add 90/15 and 45/7
1st number: 6 0/15, 2nd number: 6 3/7
90/15 + 45/7 is 87/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 7 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
90/15 = 90 × 7/15 × 7 = 630/105 - Likewise, for the 2nd fraction, since 7 × 15 = 105,
45/7 = 45 × 15/7 × 15 = 675/105 - Add the two like fractions:
630/105 + 675/105 = 630 + 675/105 = 1305/105 - 1305/105 simplified gives 87/7
- So, 90/15 + 45/7 = 87/7
In mixed form: 123/7
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